- From: Tab Atkins Jr. <jackalmage@gmail.com>
- Date: Mon, 14 Nov 2011 18:35:20 -0800
- To: Jennifer Yu <Jennifer.Yu@microsoft.com>
- Cc: "www-style@w3.org" <www-style@w3.org>
On Mon, Nov 14, 2011 at 6:31 PM, Jennifer Yu <Jennifer.Yu@microsoft.com> wrote:
> What should this animation look like?
>
> @keyframes anim1 {
> 0% {color: red; left: 10px;}
> 50% { color: notARealColor; left: 20px; }
> 100% { color: yellow; left: 90px; }
> }
>
> Should the specified color property value at 50% effectively be ignored as
> if it were not specified? Or should the whole animation of the color
> property be ignored? Or, taking it to a further extreme, should the entire
> animation be ignored?
>
> It seems more natural to just ignore the specified color value. However,
> preventing some of the animation from running would be a clear indicator to
> a web author that there’s a problem with his defined animation.
That would break forward-compatible parsing. Only the single invalid
declaration should be ignored, so that authors can do the standard
"provide multiple versions of a property" style of fallback.
~TJ
Received on Tuesday, 15 November 2011 02:36:08 UTC