Bug 1680388 [wpt PR 26731] - [LayoutNG] Abspos elements inside a spanner, a=testonly
commit815bc56b0a443373c8b6f7fb4c14bf4fb5adbac0
authorAlison Maher <almaher@microsoft.com>
Fri, 11 Dec 2020 12:16:32 +0000 (11 12:16 +0000)
committermoz-wptsync-bot <wptsync@mozilla.com>
Mon, 14 Dec 2020 09:48:28 +0000 (14 09:48 +0000)
treeb8de41bd7ad4ed30fcc037469f34c616e1c41882
parentf0c795ce56b8f8653e223f9e6b2b85154992bf57
Bug 1680388 [wpt PR 26731] - [LayoutNG] Abspos elements inside a spanner, a=testonly

Automatic update from web-platform-tests
[LayoutNG] Abspos elements inside a spanner

It was decided that the containing block chain goes directly from a
column spanner to the multi-column container. Thus, if an absolute
positioned element is nested inside a spanner, we should begin
looking for its containing block starting with the multi-column
container, as well.

This is an update to the previous legacy behavior, and the related
web test has been updated to reflect the new behavior.

Bug: 1079031
Change-Id: Ia9f60107417158c32d78e12a1d414181411ecb0a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2568852
Commit-Queue: Alison Maher <almaher@microsoft.com>
Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#834360}

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wpt-commits: 0c45008af6d683420913a9cef200f6bdb2cad485
wpt-pr: 26731
testing/web-platform/tests/css/css-multicol/abspos-containing-block-outside-spanner-ref.html [new file with mode: 0644]
testing/web-platform/tests/css/css-multicol/abspos-containing-block-outside-spanner.html [new file with mode: 0644]