ISSUE-11: Inconsistency with regard to time container defaults


Inconsistency with regard to time container defaults

TTML 1.0
Raised by:
Philippe Le Hégaret
Opened on:
The specification is inconsistent with regard to time container defaults. It claims:
"If a timeContainer attribute is not specified on an element that has time container semantics, then par time container semantics must apply."

whereas in body for example it states:
"If no timeContainer attribute is specified, then a body element must be interpreted as having sequential time containment semantics".
This needs clarification.

It is proposed to amend the specification so that elements which currently say nothing bout their time container semantics (region, p and span) explicitly call out they have par semantics. And to remove the blanket clause in timecontainer as it is not clear which has precedence.
Related Actions Items:
Related emails:
  1. FW: [css-flexbox] Transition Request, CSS Flexible Box Layout Level 1 to CR (updated) (from on 2016-01-04)
  2. [minutes] teleconference 20090123 (from on 2009-01-26)

Related notes:

No additional notes.

Display change log ATOM feed

David Singer <>, Nigel Megitt <>, Chairs, Thierry Michel <>, Philippe Le Hégaret <>, Atsushi Shimono <>, Staff Contacts
Tracker: documentation, (configuration for this group), originally developed by Dean Jackson, is developed and maintained by the Systems Team <>.
$Id: 11.html,v 1.1 2019/11/12 10:05:19 carcone Exp $