selector-pseudo-class-no-unknown
Disallow unknown pseudo-class selectors.
  a:hover {}
/** ↑
 * 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 {}