[webvtt] Pull Request: Updates to region identifier, CSS selection & existance.

silviapfeiffer has just submitted a new pull request for https://github.com/w3c/webvtt:

== Updates to region identifier, CSS selection & existance. ==
* Make sure regions only get created when they have an identifier
* introduce a ::cue-region(selector) pseudo-element

Addresses https://www.w3.org/Bugs/Public/show_bug.cgi?id=28471 and https://www.w3.org/Bugs/Public/show_bug.cgi?id=28474

Closes #314 

See https://github.com/w3c/webvtt/pull/349

Received on Sunday, 25 June 2017 06:23:24 UTC