[ttml1] Pull Request: Clarify application of padding (#221)

tairt has just submitted a new pull request for 
https://github.com/w3c/ttml1:

== Clarify application of padding (#221) ==
- See #221.

See https://github.com/w3c/ttml1/pull/233

Received on Sunday, 5 February 2017 13:35:34 UTC