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selector-pseudo-class-no-unknown

Disallow unknown pseudo-class selectors.

a:hover {}
/** โ†‘
* This pseudo-class selector */

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

This rule ignores vendor-prefixed pseudo-class selectors.

Options#

true#

The following patterns are considered violations:

a:unknown {}
a:UNKNOWN {}
a:hoverr {}

The following patterns are not considered violations:

a:hover {}
a:focus {}
:not(p) {}
input:-moz-placeholder {}

Optional secondary options#

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

Given:

["/^my-/", "pseudo-class"]

The following patterns are not considered violations:

a:pseudo-class {}
a:my-pseudo {}
a:my-other-pseudo {}