notes/node_modules/stylelint/lib/rules/unit-whitelist/README.md

unit-whitelist

Specify a whitelist of allowed units.

a { width: 100px; }
/**           ↑
 *  These units */

Options

array|string: ["array", "of", "units"]|"unit"

Given:

["px", "em", "deg"]

The following patterns are considered warnings:

a { width: 100%; }

a { font-size: 10rem; }

a { animation: animation-name 5s ease; }

The following patterns are not considered warnings:

a { font-size: 1.2em; }

a { line-height: 1.2; }

a { height: 100px; }

a { height: 100PX; }

a { transform: rotate(30deg); }

Optional secondary options

ignoreProperties: { unit: ["property", "/regex/"] }

Ignore units in the values of declarations with the specified properties.

For example, with ["px", "em"].

Given:

{
  "rem": [ "line-height", "/^border/" ],
  "%": [ "width" ]  
}

The following patterns are not considered warnings:

a { line-height: 0.1rem; }

a { border-bottom-width: 6rem; }

a { width: 100%; }

The following patterns are considered warnings:

a { margin: 0 20rem; }

a { -moz-border-radius-topright: 20rem; }

a { height: 100%; }