Properties for Interactive media

Flexible Box Layout Module CR 2012-09-18

CSS Level 2 Revision 1 Rec 2011-06-07

Basic User Interface Module Level 3 WD 2012-01-17

Note: the outline properties are also defined in this module, but not considered to be interactive anymore.

Transitions WD 2013-02-12

Lists and Counters Module Level 3 WD 2011-05-24