- From: Simon Fraser <smfr@me.com>
- Date: Tue, 14 Sep 2010 08:36:54 -0700
- To: Peter Beverloo <peter@lvp-media.com>
- Cc: www-style@w3.org
On Sep 13, 2010, at 11:52 pm, Peter Beverloo wrote: > Following the current Editor's Draft of the CSS3 Transitions Module, > the valid Point coordinates of a cubic-bezier timing-function must be > between zero and one[1]. I'd like to propose lifting this limitation. > > The primary use-case for this would be transitions which slightly, in > case of lengths, overrun the final value. This creates "elastic" > effects, some of which are visible on this page: > > http://jqueryui.com/demos/effect/easing.html > > One problem I can see are values which have fixed bounds, such as > colors. Darker than #000 can't be displayed, neither can lighter than > #FFF. In these cases it seems best to clamp the value to the > value-type's upper or lower bound internally. This has been proposed before: <http://lists.w3.org/Archives/Public/www-style/2010Apr/0489.html> <http://lists.w3.org/Archives/Public/www-style/2010Jun/0254.html> The first thread contains some amount of discussion, but concluded in the fact that we should allow this. Simon
Received on Tuesday, 14 September 2010 15:37:30 UTC