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[selectors4] "time-dimensional canvas"?

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Fri, 30 Sep 2011 18:14:44 -0700
Message-ID: <CAAWBYDD6WguNi_7tcKMoBfVmmk_xie5_ZOKy9ooPdkdOWAMpDg@mail.gmail.com>
To: www-style list <www-style@w3.org>
In the introductory paragraph of the Time-dimensional pseudo-classes
chapter, the phrase "time-dimensional canvas" is used:

"These pseudo-classes classify elements with respect to the
currently-displayed or active position in a time-dimensional canvas,
such as during speech rendering of an HTML document."

I (and, from twitter replies, other people) have no idea what this
actually means.  I suggest rewording it in more explicit terms, and
referring to the primary existing example of their use: captions in a
video.  Something like:

"These pseudo-classes classify elements with respect to the
currently-displayed or active position in some timeline, such as
during speech rendering of an HTML document, or during the display of
an HTML video using WebVTT to render karaoke subtitles."

~TJ
Received on Saturday, 1 October 2011 01:15:31 GMT

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