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notes/node_modules/caniuse-db/features-json/viewport-units.json

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{
"title":"Viewport units: vw, vh, vmin, vmax",
"description":"Length units representing 1% of the viewport size for viewport width (vw), height (vh), the smaller of the two (vmin), or the larger of the two (vmax).",
"spec":"http://www.w3.org/TR/css3-values/#viewport-relative-lengths",
"status":"cr",
"links":[
{
"url":"http://css-tricks.com/viewport-sized-typography/",
"title":"Blog post"
},
{
"url":"https://github.com/saabi/vminpoly",
"title":"Polyfill"
},
{
"url":"https://github.com/rodneyrehm/viewport-units-buggyfill",
"title":"Buggyfill - Polyfill that fixes buggy support"
},
{
"url":"http://blog.rodneyrehm.de/archives/34-iOS7-Mobile-Safari-And-Viewport-Units.html",
"title":"Back-Forward issue blog post"
},
{
"url":"https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/6514497-vmax-unit",
"title":"Microsoft Edge feature request on UserVoice"
}
],
"bugs":[
{
"description":"In Firefox there is a [documented bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1221721) where `100vh` has no effect on any element with it's `display` property set to `table`."
},
{
"description":"Chrome does not support viewport units for border widths, column gaps, transform values, box shadows or in `calc()` until version 34."
},
{
"description":"Safari & iOS Safari (both 6 and 7) does not support viewport units for border widths, column gaps, transform values, box shadows or in `calc()`."
},
{
"description":"iOS 7 Safari sets viewport unit values to 0 if the page has been left and is returned to after 60 seconds."
},
{
"description":"Internet Explorer 9 in print-mode interprets `vh` as pages. `30vh` = 30 pages"
},
{
"description":"iOS 7 Safari recalculates widths set in `vh` as `vw`, and heights set in `vw` as `vh`, when orientation changes."
},
{
"description":"In IE 10 and 11, using `vw` units with 3D transforms causes unexpected behavior"
},
{
"description":"Currently all browsers but Firefox incorrectly consider 100vw to be the entire page width, including vertical scroll bar, which can [cause a horizontal scroll bar](http://codepen.io/anon/pen/ZGYNWZ) when `overflow: auto` is set."
},
{
"description":"IE9 does not calculate viewport units correctly when the browser or OS is zoomed."
},
{
"description":"In IE9 inside an iframe, viewport units will be calculated in the context of the parent window and not the iframe."
},
{
"description":"[Chrome does not print elements defined with viewport units.](https://code.google.com/p/chromium/issues/detail?id=382313)"
},
{
"description":"`vh` on iOS is reported to include the height of the bottom toolbar in the height calculation, and the width of the sidebar (bookmarks) in the `vw` width calculation."
}
],
"categories":[
"CSS3"
],
"stats":{
"ie":{
"5.5":"n",
"6":"n",
"7":"n",
"8":"n",
"9":"a #1",
"10":"a #2",
"11":"a #2"
},
"edge":{
"12":"a #2",
"13":"a #2",
"14":"a #2",
"15":"a #2"
},
"firefox":{
"2":"n",
"3":"n",
"3.5":"n",
"3.6":"n",
"4":"n",
"5":"n",
"6":"n",
"7":"n",
"8":"n",
"9":"n",
"10":"n",
"11":"n",
"12":"n",
"13":"n",
"14":"n",
"15":"n",
"16":"n",
"17":"n",
"18":"n",
"19":"y",
"20":"y",
"21":"y",
"22":"y",
"23":"y",
"24":"y",
"25":"y",
"26":"y",
"27":"y",
"28":"y",
"29":"y",
"30":"y",
"31":"y",
"32":"y",
"33":"y",
"34":"y",
"35":"y",
"36":"y",
"37":"y",
"38":"y",
"39":"y",
"40":"y",
"41":"y",
"42":"y",
"43":"y",
"44":"y",
"45":"y",
"46":"y",
"47":"y",
"48":"y",
"49":"y",
"50":"y",
"51":"y",
"52":"y",
"53":"y",
"54":"y"
},
"chrome":{
"4":"n",
"5":"n",
"6":"n",
"7":"n",
"8":"n",
"9":"n",
"10":"n",
"11":"n",
"12":"n",
"13":"n",
"14":"n",
"15":"n",
"16":"n",
"17":"n",
"18":"n",
"19":"n",
"20":"a #2",
"21":"a #2",
"22":"a #2",
"23":"a #2",
"24":"a #2",
"25":"a #2",
"26":"y",
"27":"y",
"28":"y",
"29":"y",
"30":"y",
"31":"y",
"32":"y",
"33":"y",
"34":"y",
"35":"y",
"36":"y",
"37":"y",
"38":"y",
"39":"y",
"40":"y",
"41":"y",
"42":"y",
"43":"y",
"44":"y",
"45":"y",
"46":"y",
"47":"y",
"48":"y",
"49":"y",
"50":"y",
"51":"y",
"52":"y",
"53":"y",
"54":"y",
"55":"y",
"56":"y",
"57":"y",
"58":"y",
"59":"y"
},
"safari":{
"3.1":"n",
"3.2":"n",
"4":"n",
"5":"n",
"5.1":"n",
"6":"a #2",
"6.1":"y",
"7":"y",
"7.1":"y",
"8":"y",
"9":"y",
"9.1":"y",
"10":"y",
"10.1":"y",
"TP":"y"
},
"opera":{
"9":"n",
"9.5-9.6":"n",
"10.0-10.1":"n",
"10.5":"n",
"10.6":"n",
"11":"n",
"11.1":"n",
"11.5":"n",
"11.6":"n",
"12":"n",
"12.1":"n",
"15":"y",
"16":"y",
"17":"y",
"18":"y",
"19":"y",
"20":"y",
"21":"y",
"22":"y",
"23":"y",
"24":"y",
"25":"y",
"26":"y",
"27":"y",
"28":"y",
"29":"y",
"30":"y",
"31":"y",
"32":"y",
"33":"y",
"34":"y",
"35":"y",
"36":"y",
"37":"y",
"38":"y",
"39":"y",
"40":"y",
"41":"y",
"42":"y",
"43":"y",
"44":"y",
"45":"y"
},
"ios_saf":{
"3.2":"n",
"4.0-4.1":"n",
"4.2-4.3":"n",
"5.0-5.1":"n",
"6.0-6.1":"a #2 #3",
"7.0-7.1":"a #3",
"8":"y",
"8.1-8.4":"y",
"9.0-9.2":"y",
"9.3":"y",
"10.0-10.2":"y"
},
"op_mini":{
"all":"n"
},
"android":{
"2.1":"n",
"2.2":"n",
"2.3":"n",
"3":"n",
"4":"n",
"4.1":"n",
"4.2-4.3":"n",
"4.4":"y",
"4.4.3-4.4.4":"y",
"53":"y"
},
"bb":{
"7":"n",
"10":"y"
},
"op_mob":{
"10":"n",
"11":"n",
"11.1":"n",
"11.5":"n",
"12":"n",
"12.1":"n",
"37":"y"
},
"and_chr":{
"56":"y"
},
"and_ff":{
"51":"y"
},
"ie_mob":{
"10":"a #2",
"11":"a #2"
},
"and_uc":{
"11":"n"
},
"samsung":{
"4":"y"
},
"and_qq":{
"1.2":"y"
}
},
"notes":"",
"notes_by_num":{
"1":"Partial support in IE9 refers to supporting \"vm\" instead of \"vmin\".",
"2":"Partial support refers to not supporting the \"vmax\" unit. ",
"3":"Partial support in iOS7 is due to buggy behavior of the \"vh\" unit (see workarounds: [1](https://gist.github.com/pburtchaell/e702f441ba9b3f76f587), [2](https://gist.github.com/BenMorel/e9e34c08360ebbbd0634))."
},
"usage_perc_y":77.17,
"usage_perc_a":6.9,
"ucprefix":false,
"parent":"",
"keywords":"vm,viewport-percentage",
"ie_id":"cssvmaxunit",
"chrome_id":"",
"firefox_id":"",
"webkit_id":"",
"shown":true
}
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