[ttml2] Pull Request: Specify semantics of percentage length used with tts:{bpd, ipd} (#369).

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

== Specify semantics of percentage length used with tts:{bpd,ipd} (#369). ==
Closes #369.

See https://github.com/w3c/ttml2/pull/649

Received on Sunday, 11 February 2018 20:49:00 UTC