[ttml2] Pull Request: Mark text orientation sideways{Left, Right} at risk (#280).

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

== Mark text orientation sideways{Left,Right} at risk (#280). ==
Closes #280.

See https://github.com/w3c/ttml2/pull/637

Received on Friday, 9 February 2018 04:24:36 UTC