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[css3-animations] multiple occurrences of the same 'animation-name'

From: L. David Baron <dbaron@dbaron.org>
Date: Mon, 7 Jan 2013 22:12:27 -0800
To: www-style@w3.org
Message-ID: <20130108061227.GA4963@crum.dbaron.org>
I think http://dev.w3.org/csswg/css3-animations/ doesn't say what
happens for this testcase:

  @keyframes bounce { from { margin-left: 0px } to { margin-left: 100px } }
  p { animation: bounce 1s linear, bounce 3s linear }

In particular, it doesn't say which of these two animations
overrides the other.  This is due to a quirk in wording here:

  # If at one point in time there are multiple animations
  # specifying behavior for the same property, the animation whose
  # name occurs last in the value of ‘animation-name’ will override
  # the other animations at that point. 
   -- http://dev.w3.org/csswg/css3-animations/#animations

Since "the animation whose name occurs last in the value of
'animation-name'" doesn't disambiguate the two, since they have the
same name.

I think dropping the "whose name" would probably make it correct,
but it might be worth making things a little clearer than that.


𝄞   L. David Baron                         http://dbaron.org/   𝄂
𝄢   Mozilla                           http://www.mozilla.org/   𝄂
Received on Tuesday, 8 January 2013 06:12:53 UTC

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