Matches any E element (i.e., an element of type E). Type selectors
E F
Matches any F element that is a descendant of an E element. Descendant selectors
E > F
Matches any F element that is a child of an element E. Child selectors
E:first-child
Matches element E when E is the first child of its parent. The :first-child pseudo-class
E:link
E:visited
Matches element E if E is the source anchor of a hyperlink of which the target is not yet visited (:link) or already visited (:visited). The link pseudo-classes
E:active
Not supported
E:hover
Not supported
E:focus
Matches E during certain user actions. The dynamic pseudo-classes
E:lang(c)
Matches element of type E if it is in (human) language c (the document language specifies how language is determined). The :lang() pseudo-class
E + F
Matches any F element immediately preceded by an element E. Adjacent selectors
E[foo]
Matches any E element with the "foo" attribute set (whatever the value). Attribute selectors
E[foo="warning"]
Matches any E element whose "foo" attribute value is exactly equal to "warning". Attribute selectors
E[foo~="warning"]
INCLUDES Matches any E element whose "foo" attribute value is a list of space-separated values, one of which is exactly equal to "warning". Attribute selectors
E[lang|="en"]
Dash match. Matches any E element whose "lang" attribute has a hyphen- separated list of values beginning ( from the left) with "en". Attribute selectors
E[foo^="en"]
Prefix match. Matches any element E whose "foo" attribute begins with "en"
E[foo$=" en"]
Suffix match. Matches any element E whose "foo" attribute ends with "en"
E[foo^="en"]
Substring match. Matches any element E whose " foo" attribute contains "en"
DIV.warning
HTML only. The same as DIV[class~="warning"]. Class selectors
E#myid
Matches any E element ID equal to "myid". ID selectors
