Supported CSS 2.1 Selectors

Expression Name Description / Example
* Universal selector Matches any element
E Type selector Matches any E element (i. e. an element with the local name E)
E F Descendant selector Matches any F element that is a descendant of an E element.
E > F Child selectors Matches any F element that is a child of an element E.
E:first-child The :first-child pseudo-class Matches element E when E is the first child of its parent.
E:lang(c) The :lang() pseudo-class Matches element of type E if it is in (human) language c (the document language specifies how language is determined).
E + F Adjacent selector Matches any F element immediately preceded by a sibling element E.
E[foo] Attribute selector Matches any E element with the "foo" attribute set (whatever the value).
E[foo="warning"] Attribute selector Matches any E element whose "foo" attribute value is exactly equal to "warning".
E[foo~="warning"] Attribute selector Matches any E element whose "foo" attribute value is a list of space-separated values, one of which is exactly equal to "warning".
E[lang|="en"] Attribute selector Matches any E element whose "lang" attribute has a hyphen-separated list of values beginning (from the left) with "en".
E:before and E:after Pseudo elements The ':before' and ':after' pseudo-elements can be used to insert generated content before or after an element's content.