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

From: David Hyatt <hyatt@apple.com>
Date: Thu, 04 Sep 2008 16:00:27 -0500
To: "L. David Baron" <dbaron@dbaron.org>
Cc: www-style@w3.org, Dean Jackson <dino@apple.com>
Message-id: <730291E5-E810-4F7B-8BDE-9EF5385FE650@apple.com>

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)
Received on Thursday, 4 September 2008 21:01:10 GMT

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