Disallow vendor prefixes for values.
a { display: -webkit-flex; }
/** ↑
* These prefixes */
This rule will only complain for prefixed standard values, and not for prefixed proprietary or unknown ones.
The following patterns are considered violations:
a { display: -webkit-flex; }
a { max-width: -moz-max-content; }
a { background: -webkit-linear-gradient(bottom, #000, #fff); }
The following patterns are not considered violations:
a { display: flex; }
a { max-width: max-content; }
a { background: linear-gradient(bottom, #000, #fff); }
Given:
["grab", "max-content"]
The following patterns are not considered violations:
cursor: -webkit-grab;
.foo { max-width: -moz-max-content; }