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alpha-value-notation

Specify percentage or number notation for alpha-values.

a { color: rgb(0 0 0 / 0.5) }
/** โ†‘
* This notation */

The fix option can automatically fix all of the problems reported by this rule.

Options#

string: "number"|"percentage"

"number"#

Alpha-values must always use the number notation.

The following patterns are considered violations:

a { opacity: 50% }
a { color: rgb(0 0 0 / 50%) }

The following patterns are not considered violations:

a { opacity: 0.5 }
a { color: rgb(0 0 0 / 0.5) }

"percentage"#

Alpha-values must always use percentage notation.

The following patterns are considered violations:

a { opacity: 0.5 }
a { color: rgb(0 0 0 / 0.5) }

The following patterns are not considered violations:

a { opacity: 50% }
a { color: rgb(0 0 0 / 50%) }

Optional secondary options#

exceptProperties: ["/regex/", /regex/, "string"]#

Reverse the primary option for matching properties.

For example with "percentage".

Given:

["opacity"]

The following patterns are considered violations:

a { opacity: 50% }
a { color: rgb(0 0 0 / 0.5) }

The following patterns are not considered violations:

a { opacity: 0.5 }
a { color: rgb(0 0 0 / 50%) }