[ttml2] Consider aligning initial values of tts:position and tts:origin

cconcolato has just created a new issue for https://github.com/w3c/ttml2:

== Consider aligning initial values of tts:position and tts:origin ==
Per discussion during Jan. 2018 F2F, for backwards compatibility with TTML1.

Please view or discuss this issue at https://github.com/w3c/ttml2/issues/551 using your GitHub account

Received on Wednesday, 10 January 2018 20:00:54 UTC