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Re: [css-compositing] should background-blend-mode be reset by the background shorthand?

From: Dirk Schulze <dschulze@adobe.com>
Date: Wed, 18 Sep 2013 21:08:43 -0700
To: Rik Cabanier <cabanier@gmail.com>
CC: "L. David Baron" <dbaron@dbaron.org>, www-style list <www-style@w3.org>
Message-ID: <498CA6AB-CFDB-4CAB-9157-CEC61FB15E9D@adobe.com>
At some point it should move to level 4 of CSS backgrounds and borders. For now it is ok to have it in CSS Compositing since this spec moves faster IMO.


On Sep 19, 2013, at 5:54 AM, "Rik Cabanier" <cabanier@gmail.com<mailto:cabanier@gmail.com>> wrote:

Can I extend the 'background' property?
It seems that that should be in the backgrounds and borders spec.

On Tue, Sep 17, 2013 at 10:38 PM, Dirk Schulze <dschulze@adobe.com<mailto:dschulze@adobe.com>> wrote:
Maybe you can add the following sentences:

The 'background' property is a shorthand for setting the 'background-blend-mode' property and other background properties at the same place in the style sheet.  The 'background-blend-mode' property is part of the layer process for multiple background images <<Link to the blending process>>. The <bg-layer> type gets extended by the <blend-mode> type, separated by a double bar at the end of the list. [[!CSS3-BGB]]


On Sep 18, 2013, at 1:40 AM, Rik Cabanier <cabanier@gmail.com<mailto:cabanier@gmail.com>> wrote:

> I agree.
> Otherwise we won't be able to do make this change once the shorthand can include the blendmode as well.
> What would be the right wording?
> On Tue, Sep 17, 2013 at 3:30 PM, L. David Baron <dbaron@dbaron.org<mailto:dbaron@dbaron.org>> wrote:
> Should the background-blend-mode property be reset by the background
> shorthand?  I'm inclined to think that it should be.  All of the
> other per-background-layer properties are, and in the future we
> might want to allow setting it in the shorthand (which would require
> that the shorthand resets it).
> -David
> --
> 𝄞   L. David Baron                         http://dbaron.org/   𝄂
> 𝄢   Mozilla                          https://www.mozilla.org/   𝄂
>              Before I built a wall I'd ask to know
>              What I was walling in or walling out,
>              And to whom I was like to give offense.
>                - Robert Frost, Mending Wall (1914)

Received on Thursday, 19 September 2013 04:09:15 UTC

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