It's more of a misbehavior than a bug. The Moz engineering team probably just decided not to go back and change it after the spec was finalized. It's sort of like how they're the only UA that doesn't support display: run-in. Back int he '90s a bug was opened on it and loads of note by senior engineers stating why they should support (one saying that it's embarrassing for FF to be the only UA not to support) it's still sitting there unassigned over 15yrs later. That's just how engineering teams work.
I would suggest that you don't use percentage as a unit of measure in CSS animations. Eric > On August 27, 2013 at 8:09 AM Kuzeko Web Design - Matteo Lissandrini > <w...@kuzeko.com> wrote: > > > Thank you all for the answers, but now I am really confused. > So is this supposed to do so or is a bug? > > Can you fork my example and show me how to have this work properly if this > is possible? > > > > ------------------ > > Kuzeko > > > > On 27 August 2013 08:28, Philippe Wittenbergh <e...@l-c-n.com> wrote: > > > > > Le 27 août 2013 à 14:52, "L. David Baron" <dba...@dbaron.org> a écrit : > > > > > Many of the other references in the CSS spec to things that are > > > based on the height of the containing block explicitly say that if > > > the containing block's computed height is 'auto', then the > > > percentage is as well. See, for example: > > > http://www.w3.org/TR/CSS2/visudet.html#the-height-property > > > http://www.w3.org/TR/CSS2/visudet.html#min-max-heights > > > > > > http://www.w3.org/TR/CSS21/visuren.html#position-props , however, > > > does not say that, and you shouldn't infer it from the same thing > > > being stated elsewhere. > > > > > > The working group explicitly decided *not* to change this in 2009; > > > see: > > > http://wiki.csswg.org/spec/css2.1#issue-134 > > > http://lists.w3.org/Archives/Public/www-style/2009Jun/0056.html > > > http://lists.w3.org/Archives/Public/www-style/2009Aug/0092.html > > > > Oh :-(. I had forgotten about that resolution (which I find inconsistent > > with the way height and min-max-height work). Thing is, no browser released > > as of today, including Presto-Opera, implement this, even for a very basic > > test case [*] (I can't test IE 11beta, though). But Presto based Opera and > > Gecko manage to animated it. Bizarre. > > > > [*] http://dev.l-c-n.com/_temp/top-perc.html > > > > Gecko bug report is here: > > https://bugzilla.mozilla.org/show_bug.cgi?id=260348 > > > > Philippe > > -- > > Philippe Wittenbergh > > http://l-c-n.com > > > > > > > > > > ______________________________________________________________________ > > css-discuss [css-d@lists.css-discuss.org] > > http://www.css-discuss.org/mailman/listinfo/css-d > > List wiki/FAQ -- http://css-discuss.incutio.com/ > > List policies -- http://css-discuss.org/policies.html > > Supported by evolt.org -- http://www.evolt.org/help_support_evolt/ > > > ______________________________________________________________________ > css-discuss [css-d@lists.css-discuss.org] > http://www.css-discuss.org/mailman/listinfo/css-d > List wiki/FAQ -- http://css-discuss.incutio.com/ > List policies -- http://css-discuss.org/policies.html > Supported by evolt.org -- http://www.evolt.org/help_support_evolt/ ______________________________________________________________________ css-discuss [css-d@lists.css-discuss.org] http://www.css-discuss.org/mailman/listinfo/css-d List wiki/FAQ -- http://css-discuss.incutio.com/ List policies -- http://css-discuss.org/policies.html Supported by evolt.org -- http://www.evolt.org/help_support_evolt/
