[ttml2] Pull Request: Refactor #base* features (#834).

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

== Refactor #base* features (#834). ==
Closes #834.

See https://github.com/w3c/ttml2/pull/850

Received on Thursday, 21 June 2018 17:36:59 UTC