# function-disallowed-list Specify a list of disallowed functions. ```css a { transform: scale(1); } /** ↑ * This function */ ``` ## Options `array|string`: `["array", "of", "unprefixed", /functions/ or "regex"]|"function"|"/regex/"` If a string is surrounded with `"/"` (e.g. `"/^rgb/"`), it is interpreted as a regular expression. Given: ``` ["scale", "rgba", "linear-gradient"] ``` The following patterns are considered violations: ```css a { transform: scale(1); } ``` ```css a { color: rgba(0, 0, 0, 0.5); } ``` ```css a { background: red, -moz-linear-gradient(45deg, blue, red); } ``` The following patterns are _not_ considered violations: ```css a { background: red; } ```