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RE: [css3-regions] issue: is first region initial containing block

From: Alex Mogilevsky <alexmog@microsoft.com>
Date: Sun, 5 Feb 2012 20:52:52 +0000
To: Vincent Hardy <vhardy@adobe.com>, Anton Prowse <prowse@moonhenge.net>
CC: "www-style@w3.org" <www-style@w3.org>
Message-ID: <D51C9E849DDD0D4EA38C2E539856928412E439CF@TK5EX14MBXC214.redmond.corp.microsoft.com>
> From: Vincent Hardy [mailto:vhardy@adobe.com]
> Sent: Friday, February 03, 2012 2:12 PM
> What about the following wording instead:
> ====
> The edges of the first region in a region chain associated with a named flow
> establish
>         the rectangle that is the
>         <a href="http://www.w3.org/TR/CSS2/visudet.html#containing-block-
> details">containing block</a>
>         used for absolutely positioned elements in the name named flow which do
> not have an
>         ancestor with a 'position' of 'absolute', 'relative' or 'fixed' (see [[!CSS21]]) .
> That first region rectangle
>         is used as the containing block instead of the initial containing block.
> ====

I think that would be good default behavior. I think (although not sure I can explain why)  that should also mean that each region should be its own stacking context. Then *if* there is a goal to be able to reproduce multicol layout with regions, there will have to be a property that turns on/off ICB and stacking context on regions.
Received on Sunday, 5 February 2012 21:26:46 UTC

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