declaration-property-value-allowed-list
Specify a list of allowed property and value pairs within declarations.
a { text-transform: uppercase; }
/** ↑ ↑
* These properties and these values */Options
object:
{ "unprefixed-property-name": ["array", "of", "values"], "unprefixed-property-name": ["/regex/", "non-regex"] }
If a property name is found in the object, only the listed property values are allowed. This rule complains about all non-matching values. (If the property name is not included in the object, anything goes.)
If a property name is surrounded with "/"
(e.g. "/^animation/"), it is interpreted as a regular
expression. This allows, for example, easy targeting of shorthands:
/^animation/ will match animation,
animation-duration, animation-timing-function,
etc.
The same goes for values. Keep in mind that a regular expression
value is matched against the entire value of the declaration, not
specific parts of it. For example, a value like
"10px solid rgba( 255 , 0 , 0 , 0.5 )" will not
match "/^solid/" (notice beginning of the line boundary)
but will match "/\\s+solid\\s+/" or
"/\\bsolid\\b/".
Be careful with regex matching not to accidentally consider quoted
string values and url() arguments. For example,
"/red/" will match value such as
"1px dotted red" as well as "\"red\"" and
"white url(/mysite.com/red.png)".
Given:
{
"transform": ["/scale/"],
"whitespace": ["nowrap"],
"/color/": ["/^green/"]
}The following patterns are considered violations:
a { whitespace: pre; }a { transform: translate(1, 1); }a { -webkit-transform: translate(1, 1); }a { color: pink; }a { background-color: pink; }The following patterns are not considered violations:
a { color: pink; }a { whitespace: nowrap; }a { transform: scale(1, 1); }a { -webkit-transform: scale(1, 1); }a { color: green; }a { background-color: green; }a { background: pink; }