CSS 1
E An element of type E
S1 S2 Any selector S1 with descendant match S2 (not just children)
E F ... such as element E with descendant element F
E.myclass Element E marked with class "myclass"
E#myid ... with a document ID of "myid"
E:link ... which is an unvisited link
E:visited ... which is a visited link
E:active ... which is activated (such as between mouse down and up)
E:hover ... with a pointing device within its boundaries
E:focus ... which has input device focus
E::first-line The first formatted line of E element
E::first-letter The first formatted letter of E element
S1, S2 Matching S1 or S2
CSS 2
* Special name matching any element
S1 > S2 Selector S1 with child matching S2
S1 + S2 Selector S1 with immediately following sibling matching S2
E[attr] An E element with a "attr" attribute
E[attr="val"] ... whose value is exactly equal to "val"
E[attr~="val"] ... with "val" as a whitespace-separated element
E[attr|="en"] ... whose value is "en" or begins with "en-" (hreflang)
E:first-child E element, first child of its parent
E:lang(fr) E element in language "fr" (lang or xml:lang)
E::before Generated content before E element (see style 'content')
E::after Generated content after E element (see style 'content')
