Skip to main content


Disallow unknown annotations.

a { color: green !imprtant; }
/** ↑
* This annotation */

This rule considers annotations defined in the CSS Specifications, up to and including Editor's Drafts, to be known.

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



The following pattern is considered a problem:

a {
color: green !imprtant;

The following pattern is not considered a problem:

a {
color: green !important;

Optional secondary options

ignoreAnnotations: ["/regex/", /regex/, "string"]


["/^--foo-/", "--bar"]

The following patterns are not considered problems:

a {
color: green !--foo--bar;
a {
color: green !--bar;