[ttml2] Pull Request: Remove applicability of tts:direction on <p>

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

== Remove applicability of tts:direction on <p> ==
Closes #1211 
Closes #1213 
Closes #1211 

The _paragraph embedding level_ is determined by the `ipd`, instead of being determined by `tts:direction` as applied to `p`. This is compatible with CSS since, in CSS, `direction` sets the _paragraph embedding level_ and the combination of `direction` and `writing-mode` maps to `tts:writingMode`.

The effect of `tts:unicodeBidi` on `p` is clarified to match CSS.



See https://github.com/w3c/ttml2/pull/1214


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Received on Thursday, 12 November 2020 05:19:18 UTC