vivaldi/panels/HTML/attributes.html
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<!doctype html>
<html lang=en>
<meta charset=utf-8>
<meta name=viewport content="width=device-width">
<link rel=icon href="../res/html.ico">
<title>HTML - Attributes</title>
<link rel=stylesheet href="../res/qr.css">
<base target="_content">
<style>
th {vertical-align: top;}
</style>
<nav>
<a href="index.html" title="HTML Elements" target="_self">Elem</a><a href="attributes.html" title="HTML Attributes" target="_self" id="current">Attr</a><a href="categories.html" title="Element Categories" target="_self">Cat</a>
</nav>
<h1>HTML Attributes</h1>
<table>
<thead><tr><th>Attribute
</th><th>Element(s)
</th><th>Description
</th><th>Value
</th></tr></thead><tbody><tr><th><code title="">abbr</code>
</th><td><code title="attr-th-abbr"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-th-abbr">th</a></code>
</td><td>Alternative label to use for the header cell when referencing the cell in other contexts
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">accept</code>
</th><td><code title="attr-input-accept"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#attr-input-accept">input</a></code>
</td><td>Hint for expected file type in <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#file-upload-state-(type=file)" title="attr-input-type-file">file upload controls</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#set-of-comma-separated-tokens">Set of comma-separated tokens</a>* consisting of <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#valid-mime-type" title="valid MIME type">valid MIME types with no parameters</a> or <code title="">audio/*</code>, <code title="">video/*</code>, or <code title="">image/*</code>
</td></tr><tr><th><code title="">accept-charset</code>
</th><td><code title="attr-form-accept-charset"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#attr-form-accept-charset">form</a></code>
</td><td>Character encodings to use for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#ordered-set-of-unique-space-separated-tokens">Ordered set of unique space-separated tokens</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#ascii-case-insensitive">ASCII case-insensitive</a>, consisting of <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#encoding-name" title="encoding name">names</a> of <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#ascii-compatible-character-encoding" title="ASCII-compatible character encoding">ASCII-compatible character encodings</a>*
</td></tr><tr><th><code title="">accesskey</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/editing.html#the-accesskey-attribute" title="attr-accesskey">HTML elements</a>
</td><td>Keyboard shortcut to activate or focus element
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#ordered-set-of-unique-space-separated-tokens">Ordered set of unique space-separated tokens</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#case-sensitive">case-sensitive</a>, consisting of one Unicode code point in length
</td></tr><tr><th><code title="">action</code>
</th><td><code title="attr-fs-action"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-action">form</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#url">URL</a> to use for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-non-empty-url-potentially-surrounded-by-spaces">Valid non-empty URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">allowfullscreen</code>
</th><td><code title="attr-iframe-allowfullscreen"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-iframe-allowfullscreen">iframe</a></code>
</td><td>Whether to allow the <code><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#the-iframe-element">iframe</a></code>'s contents to use <code title="dom-element-requestFullscreen"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#dom-element-requestfullscreen">requestFullscreen()</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">alt</code>
</th><td><code title="attr-area-alt"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-area-alt">area</a></code>;
<code title="attr-img-alt"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content-1.html#attr-img-alt">img</a></code>;
<code title="attr-input-alt"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#attr-input-alt">input</a></code>
</td><td>Replacement text for use when images are not available
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">async</code>
</th><td><code title="attr-script-async"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#attr-script-async">script</a></code>
</td><td>Execute script asynchronously
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">autocomplete</code>
</th><td><code title="attr-form-autocomplete"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#attr-form-autocomplete">form</a></code>
</td><td>Default setting for autofill feature for controls in the form
</td><td>"<code title="">on</code>"; "<code title="">off</code>"
</td></tr><tr><th><code title="">autocomplete</code>
</th><td><code title="attr-fe-autocomplete"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-autocomplete">input</a></code>;
<code title="attr-fe-autocomplete"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-autocomplete">select</a></code>;
<code title="attr-fe-autocomplete"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-autocomplete">textarea</a></code>
</td><td>Hint for form autofill feature
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#autofill-field" title="autofill field">Autofill field</a> name and related tokens*
</td></tr><tr><th><code title="">autofocus</code>
</th><td><code title="attr-fe-autofocus"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-autofocus">button</a></code>;
<code title="attr-fe-autofocus"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-autofocus">input</a></code>;
<code title="attr-fe-autofocus"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-autofocus">keygen</a></code>;
<code title="attr-fe-autofocus"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-autofocus">select</a></code>;
<code title="attr-fe-autofocus"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-autofocus">textarea</a></code>
</td><td>Automatically focus the form control when the page is loaded
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">autoplay</code>
</th><td><code title="attr-media-autoplay"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-autoplay">audio</a></code>;
<code title="attr-media-autoplay"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-autoplay">video</a></code>
</td><td>Hint that the <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#media-resource">media resource</a> can be started automatically when the page is loaded
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">challenge</code>
</th><td><code title="attr-keygen-challenge"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-keygen-challenge">keygen</a></code>
</td><td>String to package with the generated and signed public key
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">charset</code>
</th><td><code title="attr-meta-charset"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-meta-charset">meta</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#character-encoding-declaration">Character encoding declaration</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#encoding-name">Encoding name</a>*
</td></tr><tr><th><code title="">charset</code>
</th><td><code title="attr-script-charset"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#attr-script-charset">script</a></code>
</td><td>Character encoding of the external script resource
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#encoding-name">Encoding name</a>*
</td></tr><tr><th><code title="">checked</code>
</th><td><code title="attr-menuitem-checked"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-checked">menuitem</a></code>;
<code title="attr-input-checked"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#attr-input-checked">input</a></code>
</td><td>Whether the command or control is checked
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">cite</code>
</th><td><code title="attr-blockquote-cite"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-blockquote-cite">blockquote</a></code>;
<code title="attr-mod-cite"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/edits.html#attr-mod-cite">del</a></code>;
<code title="attr-mod-cite"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/edits.html#attr-mod-cite">ins</a></code>;
<code title="attr-q-cite"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#attr-q-cite">q</a></code>
</td><td>Link to the source of the quotation or more information about the edit
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-url-potentially-surrounded-by-spaces">Valid URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">class</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#classes" title="attr-class">HTML elements</a>
</td><td>Classes to which the element belongs
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#set-of-space-separated-tokens">Set of space-separated tokens</a>
</td></tr><tr><th><code title="">cols</code>
</th><td><code title="attr-textarea-cols"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-textarea-cols">textarea</a></code>
</td><td>Maximum number of characters per line
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-non-negative-integer">Valid non-negative integer</a> greater than zero
</td></tr><tr><th><code title="">colspan</code>
</th><td><code title="attr-tdth-colspan"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-tdth-colspan">td</a></code>;
<code title="attr-tdth-colspan"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-tdth-colspan">th</a></code>
</td><td>Number of columns that the cell is to span
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-non-negative-integer">Valid non-negative integer</a> greater than zero
</td></tr><tr><th><code title="">command</code>
</th><td><code title="attr-menuitem-command"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-command">menuitem</a></code>
</td><td>Command definition
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#concept-id" title="concept-id">ID</a>*
</td></tr><tr><th><code title="">content</code>
</th><td><code title="attr-meta-content"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-meta-content">meta</a></code>
</td><td>Value of the element
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">contenteditable</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/editing.html#attr-contenteditable" title="attr-contenteditable">HTML elements</a>
</td><td>Whether the element is editable
</td><td>"<code title="">true</code>"; "<code title="">false</code>"
</td></tr><tr><th><code title="">contextmenu</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-contextmenu" title="attr-contextmenu">HTML elements</a>
</td><td>The element's context menu
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#concept-id" title="concept-id">ID</a>*
</td></tr><tr><th><code title="">controls</code>
</th><td><code title="attr-media-controls"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-controls">audio</a></code>;
<code title="attr-media-controls"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-controls">video</a></code>
</td><td>Show user agent controls
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">coords</code>
</th><td><code title="attr-area-coords"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-area-coords">area</a></code>
</td><td>Coordinates for the shape to be created in an <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#image-map">image map</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-list-of-integers">Valid list of integers</a>*
</td></tr><tr><th><code title="">crossorigin</code>
</th><td><code title="attr-media-crossorigin"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-crossorigin">audio</a></code>;
<code title="attr-img-crossorigin"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content-1.html#attr-img-crossorigin">img</a></code>;
<code title="attr-link-crossorigin"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-link-crossorigin">link</a></code>;
<code title="attr-script-crossorigin"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#attr-script-crossorigin">script</a></code>;
<code title="attr-media-crossorigin"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-crossorigin">video</a></code>
</td><td>How the element handles crossorigin requests
</td><td>"<code title="attr-crossorigin-anonymous-keyword"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/fetching-resources.html#attr-crossorigin-anonymous-keyword">anonymous</a></code>"; "<code title="attr-crossorigin-use-credentials-keyword"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/fetching-resources.html#attr-crossorigin-use-credentials-keyword">use-credentials</a></code>"
</td></tr><tr><th><code title="">data</code>
</th><td><code title="attr-object-data"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-object-data">object</a></code>
</td><td>Address of the resource
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-non-empty-url-potentially-surrounded-by-spaces">Valid non-empty URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">datetime</code>
</th><td><code title="attr-mod-datetime"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/edits.html#attr-mod-datetime">del</a></code>;
<code title="attr-mod-datetime"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/edits.html#attr-mod-datetime">ins</a></code>
</td><td>Date and (optionally) time of the change
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-date-string-with-optional-time">Valid date string with optional time</a>
</td></tr><tr><th><code title="">datetime</code>
</th><td><code title="attr-time-datetime"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#attr-time-datetime">time</a></code>
</td><td>Machine-readable value
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-month-string">Valid month string</a>,
<a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-date-string">valid date string</a>,
<a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-yearless-date-string">valid yearless date string</a>,
<a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-time-string">valid time string</a>,
<a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-local-date-and-time-string">valid local date and time string</a>,
<a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-time-zone-offset-string">valid time-zone offset string</a>,
<a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-global-date-and-time-string">valid global date and time string</a>,
<a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-week-string">valid week string</a>,
<a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-non-negative-integer">valid non-negative integer</a>, or
<a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-duration-string">valid duration string</a>
</td></tr><tr><th><code title="">default</code>
</th><td><code title="attr-track-default"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-track-default">track</a></code>
</td><td>Enable the track if no other <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track">text track</a> is more suitable
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">defer</code>
</th><td><code title="attr-script-defer"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#attr-script-defer">script</a></code>
</td><td>Defer script execution
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">dir</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#the-dir-attribute" title="attr-dir">HTML elements</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#the-directionality" title="the directionality">The text directionality</a> of the element
</td><td>"<code title="attr-dir-ltr"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attr-dir-ltr">ltr</a></code>"; "<code title="attr-dir-rtl"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attr-dir-rtl">rtl</a></code>"; "<code title="attr-dir-auto"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attr-dir-auto">auto</a></code>"
</td></tr><tr><th><code title="">dirname</code>
</th><td><code title="attr-fe-dirname"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-dirname">input</a></code>;
<code title="attr-fe-dirname"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-dirname">textarea</a></code>
</td><td>Name of form field to use for sending the element's <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#the-directionality" title="the directionality">directionality</a> in <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">disabled</code>
</th><td><code title="attr-fe-disabled"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-disabled">button</a></code>;
<code title="attr-menuitem-disabled"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-disabled">menuitem</a></code>;
<code title="attr-fieldset-disabled"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#attr-fieldset-disabled">fieldset</a></code>;
<code title="attr-fe-disabled"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-disabled">input</a></code>;
<code title="attr-fe-disabled"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-disabled">keygen</a></code>;
<code title="attr-optgroup-disabled"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-optgroup-disabled">optgroup</a></code>;
<code title="attr-option-disabled"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-option-disabled">option</a></code>;
<code title="attr-fe-disabled"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-disabled">select</a></code>;
<code title="attr-fe-disabled"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-disabled">textarea</a></code>
</td><td>Whether the form control is disabled
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">download</code>
</th><td><code title="attr-hyperlink-download"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-download">a</a></code>;
<code title="attr-hyperlink-download"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-download">area</a></code>
</td><td>Whether to download the resource instead of navigating to it, and its file name if so
</td><td>Text
</td></tr><tr><th><code title="">draggable</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#the-draggable-attribute" title="attr-draggable">HTML elements</a>
</td><td>Whether the element is draggable
</td><td>"<code title="">true</code>"; "<code title="">false</code>"
</td></tr><tr><th><code title="">dropzone</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#the-dropzone-attribute" title="attr-dropzone">HTML elements</a>
</td><td>Accepted item types for drag-and-drop
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#unordered-set-of-unique-space-separated-tokens">Unordered set of unique space-separated tokens</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#ascii-case-insensitive">ASCII case-insensitive</a>, consisting of accepted types and drag feedback*
</td></tr><tr><th><code title="">enctype</code>
</th><td><code title="attr-fs-enctype"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-enctype">form</a></code>
</td><td>Form data set encoding type to use for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td>"<code title="attr-fs-enctype-urlencoded"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-enctype-urlencoded">application/x-www-form-urlencoded</a></code>"; "<code title="attr-fs-enctype-formdata"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-enctype-formdata">multipart/form-data</a></code>"; "<code title="attr-fs-enctype-text"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-enctype-text">text/plain</a></code>"
</td></tr><tr><th><code title="">for</code>
</th><td><code title="attr-label-for"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#attr-label-for">label</a></code>
</td><td>Associate the label with form control
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#concept-id" title="concept-id">ID</a>*
</td></tr><tr><th><code title="">for</code>
</th><td><code title="attr-output-for"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-output-for">output</a></code>
</td><td>Specifies controls from which the output was calculated
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#unordered-set-of-unique-space-separated-tokens">Unordered set of unique space-separated tokens</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#case-sensitive">case-sensitive</a>, consisting of IDs*
</td></tr><tr><th><code title="">form</code>
</th><td><code title="attr-fae-form"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fae-form">button</a></code>;
<code title="attr-fae-form"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fae-form">fieldset</a></code>;
<code title="attr-fae-form"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fae-form">input</a></code>;
<code title="attr-fae-form"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fae-form">keygen</a></code>;
<code title="attr-fae-form"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fae-form">label</a></code>;
<code title="attr-fae-form"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fae-form">object</a></code>;
<code title="attr-fae-form"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fae-form">output</a></code>;
<code title="attr-fae-form"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fae-form">select</a></code>;
<code title="attr-fae-form"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fae-form">textarea</a></code>
</td><td>Associates the control with a <code><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#the-form-element">form</a></code> element
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#concept-id" title="concept-id">ID</a>*
</td></tr><tr><th><code title="">formaction</code>
</th><td><code title="attr-fs-formaction"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-formaction">button</a></code>;
<code title="attr-fs-formaction"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-formaction">input</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#url">URL</a> to use for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-non-empty-url-potentially-surrounded-by-spaces">Valid non-empty URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">formenctype</code>
</th><td><code title="attr-fs-formenctype"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-formenctype">button</a></code>;
<code title="attr-fs-formenctype"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-formenctype">input</a></code>
</td><td>Form data set encoding type to use for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td>"<code title="attr-fs-enctype-urlencoded"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-enctype-urlencoded">application/x-www-form-urlencoded</a></code>"; "<code title="attr-fs-enctype-formdata"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-enctype-formdata">multipart/form-data</a></code>"; "<code title="attr-fs-enctype-text"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-enctype-text">text/plain</a></code>"
</td></tr><tr><th><code title="">formmethod</code>
</th><td><code title="attr-fs-formmethod"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-formmethod">button</a></code>;
<code title="attr-fs-formmethod"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-formmethod">input</a></code>
</td><td>HTTP method to use for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td>"<code title="">GET</code>"; "<code title="">POST</code>"
</td></tr><tr><th><code title="">formnovalidate</code>
</th><td><code title="attr-fs-formnovalidate"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-formnovalidate">button</a></code>;
<code title="attr-fs-formnovalidate"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-formnovalidate">input</a></code>
</td><td>Bypass form control validation for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">formtarget</code>
</th><td><code title="attr-fs-formtarget"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-formtarget">button</a></code>;
<code title="attr-fs-formtarget"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-formtarget">input</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#browsing-context">Browsing context</a> for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#valid-browsing-context-name-or-keyword">Valid browsing context name or keyword</a>
</td></tr><tr><th><code title="">headers</code>
</th><td><code title="attr-tdth-headers"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-tdth-headers">td</a></code>;
<code title="attr-tdth-headers"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-tdth-headers">th</a></code>
</td><td>The header cells for this cell
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#unordered-set-of-unique-space-separated-tokens">Unordered set of unique space-separated tokens</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#case-sensitive">case-sensitive</a>, consisting of IDs*
</td></tr><tr><th><code title="">height</code>
</th><td><code title="attr-canvas-height"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#attr-canvas-height">canvas</a></code>;
<code title="attr-dim-height"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-height">embed</a></code>;
<code title="attr-dim-height"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-height">iframe</a></code>;
<code title="attr-dim-height"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-height">img</a></code>;
<code title="attr-dim-height"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-height">input</a></code>;
<code title="attr-dim-height"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-height">object</a></code>;
<code title="attr-dim-height"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-height">video</a></code>
</td><td>Vertical dimension
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-non-negative-integer">Valid non-negative integer</a>
</td></tr><tr><th><code title="">hidden</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/editing.html#the-hidden-attribute" title="attr-hidden">HTML elements</a>
</td><td>Whether the element is relevant
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">high</code>
</th><td><code title="attr-meter-high"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-meter-high">meter</a></code>
</td><td>Low limit of high range
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-floating-point-number">Valid floating-point number</a>*
</td></tr><tr><th><code title="">href</code>
</th><td><code title="attr-hyperlink-href"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-href">a</a></code>;
<code title="attr-hyperlink-href"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-href">area</a></code>
</td><td>Address of the <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#hyperlink">hyperlink</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-url-potentially-surrounded-by-spaces">Valid URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">href</code>
</th><td><code title="attr-link-href"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-link-href">link</a></code>
</td><td>Address of the <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#hyperlink">hyperlink</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-non-empty-url-potentially-surrounded-by-spaces">Valid non-empty URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">href</code>
</th><td><code title="attr-base-href"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-base-href">base</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#document-base-url">Document base URL</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-url-potentially-surrounded-by-spaces">Valid URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">hreflang</code>
</th><td><code title="attr-hyperlink-hreflang"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-hreflang">a</a></code>;
<code title="attr-hyperlink-hreflang"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-hreflang">area</a></code>;
<code title="attr-link-hreflang"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-link-hreflang">link</a></code>
</td><td>Language of the linked resource
</td><td>Valid BCP 47 language tag
</td></tr><tr><th><code title="">http-equiv</code>
</th><td><code title="attr-meta-http-equiv"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-meta-http-equiv">meta</a></code>
</td><td>Pragma directive
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">icon</code>
</th><td><code title="attr-menuitem-icon"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-icon">menuitem</a></code>
</td><td>Icon for the command
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-non-empty-url-potentially-surrounded-by-spaces">Valid non-empty URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">id</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#the-id-attribute" title="attr-id">HTML elements</a>
</td><td>The element's <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#concept-id" title="concept-id">ID</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">inert</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/editing.html#the-inert-attribute" title="attr-inert">HTML elements</a>
</td><td>Whether the element is inert
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">inputmode</code>
</th><td><code title="attr-fe-inputmode"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode">input</a></code>;
<code title="attr-fe-inputmode"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode">textarea</a></code>
</td><td>Hint for selecting an input modality
</td><td><code title="attr-fe-inputmode-keyword-verbatim"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-verbatim">verbatim</a></code>;
<code title="attr-fe-inputmode-keyword-latin"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-latin">latin</a></code>;
<code title="attr-fe-inputmode-keyword-latin-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-latin-name">latin-name</a></code>;
<code title="attr-fe-inputmode-keyword-latin-prose"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-latin-prose">latin-prose</a></code>;
<code title="attr-fe-inputmode-keyword-full-width-latin"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-full-width-latin">full-width-latin</a></code>;
<code title="attr-fe-inputmode-keyword-kana"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-kana">kana</a></code>;
<code title="attr-fe-inputmode-keyword-katakana"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-katakana">katakana</a></code>;
<!-- <code title="attr-fe-inputmode-keyword-half-width-katakana">half-width-katakana</code>; -->
<code title="attr-fe-inputmode-keyword-numeric"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-numeric">numeric</a></code>;
<code title="attr-fe-inputmode-keyword-tel"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-tel">tel</a></code>;
<code title="attr-fe-inputmode-keyword-email"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-email">email</a></code>;
<code title="attr-fe-inputmode-keyword-url"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-inputmode-keyword-url">url</a></code>
</td></tr><tr><th><code title="">ismap</code>
</th><td><code title="attr-img-ismap"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content-1.html#attr-img-ismap">img</a></code>
</td><td>Whether the image is a server-side image map
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">itemid</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#attr-itemid" title="attr-itemid">HTML elements</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#global-identifier">Global identifier</a> for a microdata item
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-url-potentially-surrounded-by-spaces">Valid URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">itemprop</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#names:-the-itemprop-attribute" title="attr-itemprop">HTML elements</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#property-names">Property names</a> of a microdata item
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#unordered-set-of-unique-space-separated-tokens">Unordered set of unique space-separated tokens</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#case-sensitive">case-sensitive</a>, consisting of <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#absolute-url" title="absolute URL">valid absolute URLs</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#defined-property-name" title="defined property name">defined property names</a>, or text*
</td></tr><tr><th><code title="">itemref</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#attr-itemref" title="attr-itemref">HTML elements</a>
</td><td>Referenced elements
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#unordered-set-of-unique-space-separated-tokens">Unordered set of unique space-separated tokens</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#case-sensitive">case-sensitive</a>, consisting of IDs*
</td></tr><tr><th><code title="">itemscope</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#attr-itemscope" title="attr-itemscope">HTML elements</a>
</td><td>Introduces a microdata item
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">itemtype</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#attr-itemtype" title="attr-itemtype">HTML elements</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html#item-types">Item types</a> of a microdata item
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#unordered-set-of-unique-space-separated-tokens">Unordered set of unique space-separated tokens</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#case-sensitive">case-sensitive</a>, consisting of <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#absolute-url" title="absolute URL">valid absolute URL</a>*
</td></tr><tr><th><code title="">keytype</code>
</th><td><code title="attr-keygen-keytype"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-keygen-keytype">keygen</a></code>
</td><td>The type of cryptographic key to generate
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">kind</code>
</th><td><code title="attr-track-kind"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-track-kind">track</a></code>
</td><td>The type of text track
</td><td>"<code title="attr-track-kind-subtitles"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-track-kind-subtitles">subtitles</a></code>";
"<code title="attr-track-kind-captions"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-track-kind-captions">captions</a></code>";
"<code title="attr-track-kind-descriptions"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-track-kind-descriptions">descriptions</a></code>";
"<code title="attr-track-kind-chapters"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-track-kind-chapters">chapters</a></code>";
"<code title="attr-track-kind-metadata"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-track-kind-metadata">metadata</a></code>"
</td></tr><tr><th><code title="">label</code>
</th><td><code title="attr-menuitem-label"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-label">menuitem</a></code>;
<code title="attr-menu-label"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menu-label">menu</a></code>;
<code title="attr-optgroup-label"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-optgroup-label">optgroup</a></code>;
<code title="attr-option-label"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-option-label">option</a></code>;
<code title="attr-track-label"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-track-label">track</a></code>
</td><td>User-visible label
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">lang</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attr-lang" title="attr-lang">HTML elements</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#language">Language</a> of the element
</td><td>Valid BCP 47 language tag or the empty string
</td></tr><tr><th><code title="">list</code>
</th><td><code title="attr-input-list"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-list">input</a></code>
</td><td>List of autocomplete options
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#concept-id" title="concept-id">ID</a>*
</td></tr><tr><th><code title="">loop</code>
</th><td><code title="attr-media-loop"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-loop">audio</a></code>;
<code title="attr-media-loop"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-loop">video</a></code>
</td><td>Whether to loop the <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#media-resource">media resource</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">low</code>
</th><td><code title="attr-meter-low"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-meter-low">meter</a></code>
</td><td>High limit of low range
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-floating-point-number">Valid floating-point number</a>*
</td></tr><tr><th><code title="">manifest</code>
</th><td><code title="attr-html-manifest"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-html-manifest">html</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/offline.html#concept-appcache-manifest" title="concept-appcache-manifest">Application cache manifest</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-non-empty-url-potentially-surrounded-by-spaces">Valid non-empty URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">max</code>
</th><td><code title="attr-input-max"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-max">input</a></code>
</td><td>Maximum value
</td><td>Varies*
</td></tr><tr><th><code title="">max</code>
</th><td><code title="attr-meter-max"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-meter-max">meter</a></code>;
<code title="attr-progress-max"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-progress-max">progress</a></code>
</td><td>Upper bound of range
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-floating-point-number">Valid floating-point number</a>*
</td></tr><tr><th><code title="">maxlength</code>
</th><td><code title="attr-input-maxlength"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-maxlength">input</a></code>;
<code title="attr-textarea-maxlength"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-textarea-maxlength">textarea</a></code>
</td><td>Maximum length of value
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-non-negative-integer">Valid non-negative integer</a>
</td></tr><tr><th><code title="">media</code>
</th><td><code title="attr-link-media"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-link-media">link</a></code>;
<code title="attr-source-media"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-source-media">source</a></code>;
<code title="attr-style-media"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-style-media">style</a></code>
</td><td>Applicable media
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-media-query">Valid media query</a>
</td></tr><tr><th><code title="">mediagroup</code>
</th><td><code title="attr-media-mediagroup"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-mediagroup">audio</a></code>;
<code title="attr-media-mediagroup"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-mediagroup">video</a></code>
</td><td>Groups <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#media-element" title="media element">media elements</a> together with an implicit <code><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#mediacontroller">MediaController</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">method</code>
</th><td><code title="attr-fs-method"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-method">form</a></code>
</td><td>HTTP method to use for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td>"<code title="attr-fs-method-GET-keyword"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-method-get-keyword">GET</a></code>";
"<code title="attr-fs-method-POST-keyword"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-method-post-keyword">POST</a></code>";
"<code title="attr-fs-method-dialog-keyword"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-method-dialog-keyword">dialog</a></code>"
</td></tr><tr><th><code title="">min</code>
</th><td><code title="attr-input-min"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-min">input</a></code>
</td><td>Minimum value
</td><td>Varies*
</td></tr><tr><th><code title="">min</code>
</th><td><code title="attr-meter-min"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-meter-min">meter</a></code>
</td><td>Lower bound of range
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-floating-point-number">Valid floating-point number</a>*
</td></tr><tr><th><code title="">multiple</code>
</th><td><code title="attr-input-multiple"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-multiple">input</a></code>;
<code title="attr-select-multiple"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-select-multiple">select</a></code>
</td><td>Whether to allow multiple values
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">muted</code>
</th><td><code title="attr-media-muted"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-muted">audio</a></code>;
<code title="attr-media-muted"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-muted">video</a></code>
</td><td>Whether to mute the <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#media-resource">media resource</a> by default
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">name</code>
</th><td><code title="attr-fe-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-name">button</a></code>;
<code title="attr-fe-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-name">fieldset</a></code>;
<code title="attr-fe-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-name">input</a></code>;
<code title="attr-fe-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-name">keygen</a></code>;
<code title="attr-fe-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-name">output</a></code>;
<code title="attr-fe-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-name">select</a></code>;
<code title="attr-fe-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fe-name">textarea</a></code>
</td><td>Name of form control to use for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a> and in the <code title="dom-form-elements"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#dom-form-elements">form.elements</a></code> API
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">name</code>
</th><td><code title="attr-form-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/forms.html#attr-form-name">form</a></code>
</td><td>Name of form to use in the <code title="dom-document-forms"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/dom.html#dom-document-forms">document.forms</a></code> API
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">name</code>
</th><td><code title="attr-iframe-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-iframe-name">iframe</a></code>;
<code title="attr-object-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-object-name">object</a></code>
</td><td>Name of <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#nested-browsing-context">nested browsing context</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#valid-browsing-context-name-or-keyword">Valid browsing context name or keyword</a>
</td></tr><tr><th><code title="">name</code>
</th><td><code title="attr-map-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-map-name">map</a></code>
</td><td>Name of <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#image-map">image map</a> to reference from the <code title="attr-hyperlink-usemap"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-hyperlink-usemap">usemap</a></code> attribute
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">name</code>
</th><td><code title="attr-meta-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-meta-name">meta</a></code>
</td><td>Metadata name
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">name</code>
</th><td><code title="attr-param-name"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-param-name">param</a></code>
</td><td>Name of parameter
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">novalidate</code>
</th><td><code title="attr-fs-novalidate"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-novalidate">form</a></code>
</td><td>Bypass form control validation for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">open</code>
</th><td><code title="attr-details-open"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-details-open">details</a></code>
</td><td>Whether the details are visible
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">open</code>
</th><td><code title="attr-dialog-open"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/commands.html#attr-dialog-open">dialog</a></code>
</td><td>Whether the dialog box is showing
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">optimum</code>
</th><td><code title="attr-meter-optimum"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-meter-optimum">meter</a></code>
</td><td>Optimum value in gauge
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-floating-point-number">Valid floating-point number</a>*
</td></tr><tr><th><code title="">pattern</code>
</th><td><code title="attr-input-pattern"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-pattern">input</a></code>
</td><td>Pattern to be matched by the form control's value
</td><td>Regular expression matching the JavaScript <i title="">Pattern</i> production
</td></tr><tr><th><code title="">ping</code>
</th><td><code title="attr-hyperlink-ping"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#ping">a</a></code>;
<code title="attr-hyperlink-ping"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#ping">area</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#url" title="URL">URLs</a> to ping
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#set-of-space-separated-tokens">Set of space-separated tokens</a> consisting of <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-non-empty-url" title="valid non-empty URL">valid non-empty URLs</a>
</td></tr><tr><th><code title="">placeholder</code>
</th><td><code title="attr-input-placeholder"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-placeholder">input</a></code>;
<code title="attr-textarea-placeholder"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-textarea-placeholder">textarea</a></code>
</td><td>User-visible label to be placed within the form control
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">poster</code>
</th><td><code title="attr-video-poster"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-video-poster">video</a></code>
</td><td>Poster frame to show prior to video playback
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-non-empty-url-potentially-surrounded-by-spaces">Valid non-empty URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">preload</code>
</th><td><code title="attr-media-preload"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-preload">audio</a></code>;
<code title="attr-media-preload"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-preload">video</a></code>
</td><td>Hints how much buffering the <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#media-resource">media resource</a> will likely need
</td><td>"<code title="attr-media-preload-none"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-preload-none">none</a></code>";
"<code title="attr-media-preload-metadata"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-preload-metadata">metadata</a></code>";
"<code title="attr-media-preload-auto"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-preload-auto">auto</a></code>"
</td></tr><tr><th><code title="">radiogroup</code>
</th><td><code title="attr-menuitem-radiogroup"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-radiogroup">menuitem</a></code>
</td><td>Name of group of commands to treat as a radio button group
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">readonly</code>
</th><td><code title="attr-input-readonly"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-readonly">input</a></code>;
<code title="attr-textarea-readonly"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-textarea-readonly">textarea</a></code>
</td><td>Whether to allow the value to be edited by the user
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">rel</code>
</th><td><code title="attr-hyperlink-rel"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-rel">a</a></code>;
<code title="attr-hyperlink-rel"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-rel">area</a></code>;
<code title="attr-link-rel"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-link-rel">link</a></code>
</td><td>Relationship between the document containing the hyperlink and the destination resource
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#set-of-space-separated-tokens">Set of space-separated tokens</a>*
</td></tr><tr><th><code title="">required</code>
</th><td><code title="attr-input-required"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-required">input</a></code>;
<code title="attr-select-required"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-select-required">select</a></code>;
<code title="attr-textarea-required"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-textarea-required">textarea</a></code>
</td><td>Whether the control is required for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">reversed</code>
</th><td><code title="attr-ol-reversed"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-ol-reversed">ol</a></code>
</td><td>Number the list backwards
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">rows</code>
</th><td><code title="attr-textarea-rows"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-textarea-rows">textarea</a></code>
</td><td>Number of lines to show
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-non-negative-integer">Valid non-negative integer</a> greater than zero
</td></tr><tr><th><code title="">rowspan</code>
</th><td><code title="attr-tdth-rowspan"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-tdth-rowspan">td</a></code>;
<code title="attr-tdth-rowspan"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-tdth-rowspan">th</a></code>
</td><td>Number of rows that the cell is to span
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-non-negative-integer">Valid non-negative integer</a>
</td></tr><tr><th><code title="">sandbox</code>
</th><td><code title="attr-iframe-sandbox"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-iframe-sandbox">iframe</a></code>
</td><td>Security rules for nested content
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#unordered-set-of-unique-space-separated-tokens">Unordered set of unique space-separated tokens</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#ascii-case-insensitive">ASCII case-insensitive</a>, consisting of
"<code title="attr-iframe-sandbox-allow-forms"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/origin-0.html#attr-iframe-sandbox-allow-forms">allow-forms</a></code>",
"<code title="attr-iframe-sandbox-allow-pointer-lock"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/origin-0.html#attr-iframe-sandbox-allow-pointer-lock">allow-pointer-lock</a></code>",
"<code title="attr-iframe-sandbox-allow-popups"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/origin-0.html#attr-iframe-sandbox-allow-popups">allow-popups</a></code>",
"<code title="attr-iframe-sandbox-allow-same-origin"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/origin-0.html#attr-iframe-sandbox-allow-same-origin">allow-same-origin</a></code>",
"<code title="attr-iframe-sandbox-allow-scripts"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/origin-0.html#attr-iframe-sandbox-allow-scripts">allow-scripts</a></code> and
"<code title="attr-iframe-sandbox-allow-top-navigation"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/origin-0.html#attr-iframe-sandbox-allow-top-navigation">allow-top-navigation</a></code>"
</td></tr><tr><th><code title="">spellcheck</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/editing.html#attr-spellcheck" title="attr-spellcheck">HTML elements</a>
</td><td>Whether the element is to have its spelling and grammar checked
</td><td>"<code title="">true</code>"; "<code title="">false</code>"
</td></tr><tr><th><code title="">scope</code>
</th><td><code title="attr-th-scope"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-th-scope">th</a></code>
</td><td>Specifies which cells the header cell applies to
</td><td>"<code title="attr-th-scope-row"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-th-scope-row">row</a></code>";
"<code title="attr-th-scope-col"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-th-scope-col">col</a></code>";
"<code title="attr-th-scope-rowgroup"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-th-scope-rowgroup">rowgroup</a></code>";
"<code title="attr-th-scope-colgroup"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-th-scope-colgroup">colgroup</a></code>"
</td></tr><tr><th><code title="">scoped</code>
</th><td><code title="attr-style-scoped"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-style-scoped">style</a></code>
</td><td>Whether the styles apply to the entire document or just the parent subtree
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">seamless</code>
</th><td><code title="attr-iframe-seamless"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-iframe-seamless">iframe</a></code>
</td><td>Whether to apply the document's styles to the nested content
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">selected</code>
</th><td><code title="attr-option-selected"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-option-selected">option</a></code>
</td><td>Whether the option is selected by default
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">shape</code>
</th><td><code title="attr-area-shape"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-area-shape">area</a></code>
</td><td>The kind of shape to be created in an <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#image-map">image map</a>
</td><td>"<code title="attr-area-shape-keyword-circle"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-area-shape-keyword-circle">circle</a></code>";
"<code title="attr-area-shape-keyword-default"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-area-shape-keyword-default">default</a></code>";
"<code title="attr-area-shape-keyword-poly"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-area-shape-keyword-poly">poly</a></code>";
"<code title="attr-area-shape-keyword-rect"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-area-shape-keyword-rect">rect</a></code>"
</td></tr><tr><th><code title="">size</code>
</th><td><code title="attr-input-size"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-size">input</a></code>;
<code title="attr-select-size"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-select-size">select</a></code>
</td><td>Size of the control
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-non-negative-integer">Valid non-negative integer</a> greater than zero
</td></tr><tr><th><code title="">sizes</code>
</th><td><code title="attr-link-sizes"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-link-sizes">link</a></code>
</td><td>Sizes of the icons (for <code title="attr-link-rel"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-link-rel">rel</a></code>="<code title="rel-icon"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#rel-icon">icon</a></code>")
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#unordered-set-of-unique-space-separated-tokens">Unordered set of unique space-separated tokens</a>, <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#ascii-case-insensitive">ASCII case-insensitive</a>, consisting of sizes*
</td></tr><tr><th><code title="">span</code>
</th><td><code title="attr-col-span"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-col-span">col</a></code>;
<code title="attr-colgroup-span"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#attr-colgroup-span">colgroup</a></code>
</td><td>Number of columns spanned by the element
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-non-negative-integer">Valid non-negative integer</a> greater than zero
</td></tr><tr><th><code title="">src</code>
</th><td><code title="attr-media-src"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-src">audio</a></code>;
<code title="attr-embed-src"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-embed-src">embed</a></code>;
<code title="attr-iframe-src"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-iframe-src">iframe</a></code>;
<code title="attr-img-src"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content-1.html#attr-img-src">img</a></code>;
<code title="attr-input-src"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#attr-input-src">input</a></code>;
<code title="attr-script-src"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#attr-script-src">script</a></code>;
<code title="attr-source-src"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-source-src">source</a></code>;
<code title="attr-track-src"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-track-src">track</a></code>;
<code title="attr-media-src"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-media-src">video</a></code>
</td><td>Address of the resource
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#valid-non-empty-url-potentially-surrounded-by-spaces">Valid non-empty URL potentially surrounded by spaces</a>
</td></tr><tr><th><code title="">srcdoc</code>
</th><td><code title="attr-iframe-srcdoc"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-iframe-srcdoc">iframe</a></code>
</td><td>A document to render in the <code><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#the-iframe-element">iframe</a></code>
</td><td>The source of <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#an-iframe-srcdoc-document">an <code>iframe</code> <code title="attr-iframe-srcdoc">srcdoc</code> document</a>*
</td></tr><tr><th><code title="">srclang</code>
</th><td><code title="attr-track-srclang"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-track-srclang">track</a></code>
</td><td>Language of the text track
</td><td>Valid BCP 47 language tag
</td></tr><tr><th><code title="">srcset</code>
</th><td><code title="attr-img-srcset"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content-1.html#attr-img-srcset">img</a></code>
</td><td>Images to use in different situations (e.g. high-resolution displays, small monitors, etc)
</td><td>Comma-separated list of <span>image candidate strings</span>
</td></tr><tr><th><code title="">start</code>
</th><td><code title="attr-ol-start"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-ol-start">ol</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#ordinal-value">Ordinal value</a> of the first item
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-integer">Valid integer</a>
</td></tr><tr><th><code title="">step</code>
</th><td><code title="attr-input-step"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#attr-input-step">input</a></code>
</td><td>Granularity to be matched by the form control's value
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-floating-point-number">Valid floating-point number</a> greater than zero, or "<code title="">any</code>"
</td></tr><tr><th><code title="">style</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#the-style-attribute" title="attr-style">HTML elements</a>
</td><td>Presentational and formatting instructions
</td><td>CSS declarations*
</td></tr><tr><th><code title="">tabindex</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/editing.html#attr-tabindex" title="attr-tabindex">HTML elements</a>
</td><td>Whether the element is focusable, and the relative order of the element for the purposes of sequential focus navigation
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-integer">Valid integer</a>
</td></tr><tr><th><code title="">target</code>
</th><td><code title="attr-hyperlink-target"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-target">a</a></code>;
<code title="attr-hyperlink-target"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-target">area</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#browsing-context">Browsing context</a> for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#hyperlink">hyperlink</a> <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/history.html#navigate" title="navigate">navigation</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#valid-browsing-context-name-or-keyword">Valid browsing context name or keyword</a>
</td></tr><tr><th><code title="">target</code>
</th><td><code title="attr-base-target"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-base-target">base</a></code>
</td><td>Default <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#browsing-context">browsing context</a> for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#hyperlink">hyperlink</a> <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/history.html#navigate" title="navigate">navigation</a> and <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#valid-browsing-context-name-or-keyword">Valid browsing context name or keyword</a>
</td></tr><tr><th><code title="">target</code>
</th><td><code title="attr-fs-target"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#attr-fs-target">form</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#browsing-context">Browsing context</a> for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/browsers.html#valid-browsing-context-name-or-keyword">Valid browsing context name or keyword</a>
</td></tr><tr><th><code title="">title</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attr-title" title="attr-title">HTML elements</a>
</td><td>Advisory information for the element
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">title</code>
</th><td><code title="attr-abbr-title"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#attr-abbr-title">abbr</a></code>;
<code title="attr-dfn-title"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#attr-dfn-title">dfn</a></code>
</td><td>Full term or expansion of abbreviation
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">title</code>
</th><td><code title="attr-menuitem-title"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-title">menuitem</a></code>
</td><td>Hint describing the command
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">title</code>
</th><td><code title="attr-link-title"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-link-title">link</a></code>
</td><td>Title of the link
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">title</code>
</th><td><code title="attr-link-title"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-link-title">link</a></code>;
<code title="attr-style-title"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-style-title">style</a></code>
</td><td>Alternative style sheet set name
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">translate</code>
</th><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attr-translate" title="attr-translate">HTML elements</a>
</td><td>Whether the element is to be translated when the page is localized
</td><td>"<code title="">yes</code>"; "<code title="">no</code>"
</td></tr><tr><th><code title="">type</code>
</th><td><code title="attr-hyperlink-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-type">a</a></code>;
<code title="attr-hyperlink-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#attr-hyperlink-type">area</a></code>;
<code title="attr-link-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-link-type">link</a></code>
</td><td>Hint for the type of the referenced resource
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#valid-mime-type">Valid MIME type</a>
</td></tr><tr><th><code title="">type</code>
</th><td><code title="attr-button-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-button-type">button</a></code>
</td><td>Type of button
</td><td>"<code title="attr-button-type-submit"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-button-type-submit">submit</a></code>";
"<code title="attr-button-type-reset"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-button-type-reset">reset</a></code>";
"<code title="attr-button-type-button"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-button-type-button">button</a></code>";
"<code title="attr-button-type-menu"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-button-type-menu">menu</a></code>"
</td></tr><tr><th><code title="">type</code>
</th><td><code title="attr-embed-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-embed-type">embed</a></code>;
<code title="attr-object-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-object-type">object</a></code>;
<code title="attr-script-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/scripting-1.html#attr-script-type">script</a></code>;
<code title="attr-source-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#attr-source-type">source</a></code>;
<code title="attr-style-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/semantics.html#attr-style-type">style</a></code>
</td><td>Type of embedded resource
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/infrastructure.html#valid-mime-type">Valid MIME type</a>
</td></tr><tr><th><code title="">type</code>
</th><td><code title="attr-input-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#attr-input-type">input</a></code>
</td><td>Type of form control
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#attr-input-type" title="attr-input-type"><code>input</code> type keyword</a>
</td></tr><tr><th><code title="">type</code>
</th><td><code title="attr-menu-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menu-type">menu</a></code>
</td><td>Type of menu
</td><td>"<code title="popup menu state"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#popup-menu-state">popup</a></code>"; "<code title="toolbar state"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#toolbar-state">toolbar</a></code>"
</td></tr><tr><th><code title="">type</code>
</th><td><code title="attr-menuitem-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-type">menuitem</a></code>
</td><td>Type of command
</td><td>"<code title="attr-menuitem-type-keyword-command"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-type-keyword-command">command</a></code>";
"<code title="attr-menuitem-type-keyword-checkbox"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-type-keyword-checkbox">checkbox</a></code>";
"<code title="attr-menuitem-type-keyword-radio"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#attr-menuitem-type-keyword-radio">radio</a></code>"
</td></tr><tr><th><code title="">type</code>
</th><td><code title="attr-ol-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-ol-type">ol</a></code>
</td><td>Kind of list marker
</td><td>"<code title="attr-ol-type-keyword-decimal"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-ol-type-keyword-decimal">1</a></code>";
"<code title="attr-ol-type-keyword-lower-alpha"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-ol-type-keyword-lower-alpha">a</a></code>";
"<code title="attr-ol-type-keyword-upper-alpha"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-ol-type-keyword-upper-alpha">A</a></code>";
"<code title="attr-ol-type-keyword-lower-roman"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-ol-type-keyword-lower-roman">i</a></code>";
"<code title="attr-ol-type-keyword-upper-roman"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-ol-type-keyword-upper-roman">I</a></code>"
</td></tr><tr><th><code title="">typemustmatch</code>
</th><td><code title="attr-object-typemustmatch"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-object-typemustmatch">object</a></code>
</td><td>Whether the <code title="attr-object-type"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-object-type">type</a></code> attribute and the <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/fetching-resources.html#content-type">Content-Type</a> value need to match for the resource to be used
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#boolean-attribute">Boolean attribute</a>
</td></tr><tr><th><code title="">usemap</code>
</th><td><code title="attr-hyperlink-usemap"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-hyperlink-usemap">img</a></code>;
<code title="attr-hyperlink-usemap"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-hyperlink-usemap">object</a></code>
</td><td>Name of <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#image-map">image map</a> to use
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-hash-name-reference">Valid hash-name reference</a>*
</td></tr><tr><th><code title="">value</code>
</th><td><code title="attr-button-value"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-button-value">button</a></code>;
<code title="attr-option-value"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-option-value">option</a></code>
</td><td>Value to be used for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">value</code>
</th><td><code title="attr-data-value"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/text-level-semantics.html#attr-data-value">data</a></code>
</td><td>Machine-readable value
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>*
</td></tr><tr><th><code title="">value</code>
</th><td><code title="attr-input-value"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#attr-input-value">input</a></code>
</td><td>Value of the form control
</td><td>Varies*
</td></tr><tr><th><code title="">value</code>
</th><td><code title="attr-li-value"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#attr-li-value">li</a></code>
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/grouping-content.html#ordinal-value">Ordinal value</a> of the list item
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-integer">Valid integer</a>
</td></tr><tr><th><code title="">value</code>
</th><td><code title="attr-meter-value"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-meter-value">meter</a></code>;
<code title="attr-progress-value"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-progress-value">progress</a></code>
</td><td>Current value of the element
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-floating-point-number">Valid floating-point number</a>
</td></tr><tr><th><code title="">value</code>
</th><td><code title="attr-param-value"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-iframe-element.html#attr-param-value">param</a></code>
</td><td>Value of parameter
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/elements.html#attribute-text">Text</a>
</td></tr><tr><th><code title="">width</code>
</th><td><code title="attr-canvas-width"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#attr-canvas-width">canvas</a></code>;
<code title="attr-dim-width"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-width">embed</a></code>;
<code title="attr-dim-width"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-width">iframe</a></code>;
<code title="attr-dim-width"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-width">img</a></code>;
<code title="attr-dim-width"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-width">input</a></code>;
<code title="attr-dim-width"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-width">object</a></code>;
<code title="attr-dim-width"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#attr-dim-width">video</a></code>
</td><td>Horizontal dimension
</td><td><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#valid-non-negative-integer">Valid non-negative integer</a>
</td></tr><tr><th><code title="">wrap</code>
</th><td><code title="attr-textarea-wrap"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-textarea-wrap">textarea</a></code>
</td><td>How the value of the form control is to be wrapped for <a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#form-submission">form submission</a>
</td><td>"<code title="attr-textarea-wrap-soft"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-textarea-wrap-soft">soft</a></code>";
"<code title="attr-textarea-wrap-hard"><a href="http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#attr-textarea-wrap-hard">hard</a></code>"
</td></tr></tbody></table>
<p class="tablenote"><small>Event handler content attributes not included.<br>
An asterisk (*) in a cell indicates that the actual rules are more complicated than indicated in the table above.</small></p>