forked from mirrors/gecko-dev
7904414363
Automatic update from web-platform-tests Write column-count back to legacy correctly. Column-count was written back to legacy by resolving it separately after actual layout. At this point we don't have the information we need - the content box inline-size. We were actually passing the available inline-size from the containing block instead, which is wrong (unless the content-box inline-size of the multicol container happens to be identical to the containing block inline-size), and worse: it could be indefinite, which may be the case if the multicol container is a grid item. We'd end up with both division by zero and correctness issues. It's much better to write column-count back during actual multicol layout, just like we already do for column inline-size. Bug: 1349884 Change-Id: I6ab3f13bc3bc3f47bda12bf9c54f1bb1171ffda4 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3970622 Commit-Queue: Morten Stenshorne <mstensho@chromium.org> Reviewed-by: Alison Maher <almaher@microsoft.com> Cr-Commit-Position: refs/heads/main@{#1063375} -- wpt-commits: ae877771984f4877d856aa3a1b2adcaa1ef39e30 wpt-pr: 36642
17 lines
760 B
HTML
17 lines
760 B
HTML
<!DOCTYPE html>
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<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
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<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1349884">
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<div style="position:relative; columns:2; gap:0; width:600px; column-fill:auto; height:100px;">
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<div style="height:70px; contain:size;"></div>
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<div style="width:40px; column-width:20px; gap:0; column-fill:auto;">
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<div style="height:20px;"></div>
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<div id="secondouter" style="height:50px; contain:size;"></div>
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</div>
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</div>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script>
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test(()=> {
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assert_equals(secondouter.offsetTop, 0);
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}, "offsetTop on element in second outer column");
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</script>
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