Comments on HTML5
This page is where the CSSWG will track our comments to the HTMLWG regarding their HTML5 specification.
Official CSSWG Comments (DRAFT)
Pseudo-selectors
It is our understanding that the CSSWG defines pseudo-class selectors in its modules, and the HTMLWG defines how elements enter the corresponding states in HTML5. Given that understanding, this section seems to be missing normative references to the appropriate specs, i.e. Selectors 3 / CSS3 UI / Selectors 4.
With regards to :ltr and :rtl, these should be updated to :dir() per Selectors 4: see http://www.w3.org/Bugs/Public/show_bug.cgi?id=13346
We’ve added :past and :future to the Selectors 4 draft for you, btw. Next time please ask us if you need a selector defined. We might not get to it right away, but at least we will be aware that we need to draft a spec for it.