[webvtt] Pull Request: Add a "User agents that do not support CSS" conformance class.

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

== Add a "User agents that do not support CSS" conformance class. ==
This actually introduces a definition for "WebVTT cue setting" and
clarifies how they provide information to position and align the cue
box and cue text.

Closes #360 

See https://github.com/w3c/webvtt/pull/389

Received on Sunday, 1 October 2017 22:20:20 UTC