Re: [selectors4][css-ui] Timed media state pseudoclasses

Hi Tab,

You wrote:

> These make sense to me.  I'm fine with HTML defining them.

In a similar case, WebVTT used to define :past and :future. We moved
their definitions to CSS; what's left in WebVTT is how they get wired up
to WebVTT node objects. ISTM that :playing, :paused, and :muted are no
different. Sure, HTML should spec how these pseudos get wired up to
HTML's media elements, but the pseudos themselves don't depend on a
specific host language.


Ted