Re: [CSS Transforms] syntax of transform-origin vs. background-position

On Sep 4, 2008, at 3:52 PM, L. David Baron wrote:

>
> Right now the syntax of the transform-origin property in
> http://webkit.org/specs/CSSVisualEffects/CSSTransforms.html is
> similar to the syntax of the existing 'background-position' property
> (plus an extra length at the end for anybody implementing 3-D
> transforms).  It actually looks like it pretty much matches the CSS
> 2.0 definition of background-position, but not the CSS 2.1
> definition, which allows mixing of percentages/lengths with keywords
> to match implementations.
>
> I propose eliminating all differences with the background-position
> property and just matching the CSS 2.1 definition of the
> background-position property, plus (for those implementing 3-D
> transforms) an optional third length at the end when the first two
> values are percentages or lengths.
>

That sounds good to me.

> (There are also recently-agreed changes for css3-background; those
> might make things a little trickier.)
>

Could you elaborate?

dave
(hyatt@apple.com)