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unit-allowed-list

Specify a list of allowed units.

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

The message secondary option can accept the arguments of this rule.

Options​

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

Given:

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

The following patterns are considered problems:

a { width: 100%; }
a { font-size: 10rem; }
a { animation: animation-name 5s ease; }

The following patterns are not considered problems:

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/", /regex/]|"property"|"/regex/"|/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 problems:

a { line-height: 0.1rem; }
a { border-bottom-width: 6rem; }
a { width: 100%; }

The following patterns are considered problems:

a { margin: 0 20rem; }
a { -moz-border-radius-topright: 20rem; }
a { height: 100%; }

ignoreFunctions: ["function", "/regex/", /regex/]|"function"|"/regex/"|/regex/​

Ignore units that are inside of the specified functions.

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

Given:

["/^hsl/", "calc"]

The following patterns are not considered problems:

a {
  border: 1px solid hsl(162deg, 51%, 35%, 0.8);
}
a {
  background-image: linear-gradient(hsla(162deg, 51%, 35%, 0.8), hsla(62deg, 51%, 35%, 0.8));
}
a {
  width: calc(100% - 10px);
}