Re: Proposal: will-animate property

On Sat, Nov 30, 2013 at 1:14 PM, Ali Juma <ajuma@chromium.org> wrote:

> In Benoit's original proposal (where only transform, opacity, and scroll
> were valid values), will-animate values other than 'auto' cause the
> creation of a stacking context. This indeed seems desirable for properties
> that themselves will create stacking contexts when given non-default values
> (e.g. transform, opacity, perspective, and filter). What about for other
> properties (e.g., consider "will-animate: left")? Is it reasonable to
> restrict the creation of a stacking context by will-animate so that it only
> happens when at least one of the properties listed creates a stacking
> context when given a non-default value?
>

I think that's unnecessarily risky for forward compatibility, as well as
being unnecessarily complex.

I would simply say that will-animate values other than "none" always induce
a stacking context.

Rob
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