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Re: [csswg-drafts] [css-animations] Clarify properties that are not allowed in @keyframes rule (#2736)

From: Brian Birtles via GitHub <sysbot+gh@w3.org>
Date: Wed, 28 Aug 2019 23:25:42 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-525960217-1567034741-sysbot+gh@w3.org>
I think we still need to clarify whether non-animatable properties are exposed in the CSSOM. Specifically, from an above comment:

> >  The `<declaration-list>` inside of `<keyframe-block>` accepts any CSS property except those defined in this specification, but does accept the animation-timing-function property and interprets it specially.
> I'm not sure what "accepts" means here (are such properties ignored silently? Do they generate errors? Are they available in the CSSOM?). However, I suspect we want to do what Gecko does here and parse such properties, expose them in the CSSOM, but simply not animate them. i.e. this is Issue 1 from the spec:
> > This specification needs to define how the value is determined from the keyframes, like the section on Application of transitions does for CSS Transitions.

GitHub Notification of comment by birtles
Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/2736#issuecomment-525960217 using your GitHub account
Received on Wednesday, 28 August 2019 23:25:44 UTC

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