[ttml2] Pull Request: Make tts:ruby non-animatable (#773).

skynavga has just submitted a new pull request for https://github.com/w3c/ttml2:

== Make tts:ruby non-animatable (#773). ==


See https://github.com/w3c/ttml2/pull/774

Received on Friday, 18 May 2018 20:23:39 UTC