[ttml2] Pull Request: Clarify applicability of special value of 60 in seconds component (#1…

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

== Clarify applicability of special value of 60 in seconds component (#1… ==
…58).

Closes #158.

See https://github.com/w3c/ttml2/pull/325

Received on Monday, 22 May 2017 17:33:00 UTC