Selectors
Selectors Level 3 Rec 2011-09-29
Simple selectors
Pseudo-classes
Pseudo-elements
Combinators
Paged Media Module Level 3 WD 2013-03-14
Page selector pseudo-classes
Basic User Interface Module Level 3 WD 2012-01-17
User interface states: pseudo-classes
User interface states: pseudo-elements
Template Layout Module WD 2011-11-29
Pseudo-element
Selectors Level 4 WD 2013-05-02
Listing only the additions and extensions to Selectors 3
Overflow Module Level 3 WD 2013-04-18
Pseudo-element
Regions Module Level 3 WD 2013-05-28
Pseudo-element