gecko-dev/testing/web-platform/tests/css/css-multicol/multicol-rule-nested-balancing-002.html
Ting-Yu Lin b14d39764b Bug 1548100 Part 2 - Fix the block-size of the column-rule by consuming available block-size. r=dbaron
After enabling column-span, ColumnSet becomes an anonymous child under
ColumnSetWrapperFrame. It doesn't need to handle border and padding,
containment, and non-auto block-size. ColumnSet's final block-size is
simply the union of ::-moz-column-content frames' rects.

However, we should extend ColumnSet's block-size to consume the
available block-size if the ColumnSetWrapper's block-size is constrained
so that the column rules are drawn to the block-end edge of the multicol
container.

Differential Revision: https://phabricator.services.mozilla.com/D39060

--HG--
rename : testing/web-platform/meta/css/css-multicol/multicol-breaking-000.html.ini => testing/web-platform/meta/css/css-multicol/multicol-rule-nested-balancing-001.html.ini
rename : testing/web-platform/meta/css/css-multicol/multicol-breaking-000.html.ini => testing/web-platform/meta/css/css-multicol/multicol-rule-nested-balancing-002.html.ini
rename : testing/web-platform/meta/css/css-multicol/multicol-breaking-000.html.ini => testing/web-platform/meta/css/css-multicol/multicol-span-all-rule-001.html.ini
extra : moz-landing-system : lando
2019-08-01 22:48:55 +00:00

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1.3 KiB
HTML

<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>CSS Multi-column Layout Test: Test the column rules' block-size with nested balancing multicol container</title>
<link rel="author" title="Ting-Yu Lin" href="tlin@mozilla.com">
<link rel="author" title="Mozilla" href="https://www.mozilla.org/">
<link rel="help" href="https://drafts.csswg.org/css-multicol-1/#cf">
<link rel="help" href="https://drafts.csswg.org/css-multicol-1/#column-gaps-and-rules">
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/2309">
<link rel="match" href="multicol-rule-nested-balancing-002-ref.html">
<meta name="assert" content="This test verifies that the column-rules are extended to the content block-end edges of their corresponding inner and outer multicol container, where the inner container has height: auto.">
<style>
.outer {
column-count: 2;
column-rule: 6px solid black;
width: 400px;
height: 250px;
}
.inner {
column-count: 2;
column-rule: 3px solid gray;
height: auto;
}
.outer-block {
background-color: lightgreen;
height: 200px;
}
.inner-block {
background-color: lightblue;
height: 400px;
}
</style>
<article class="outer">
<div class="outer-block"></div>
<article class="inner">
<div class="inner-block"></div>
</article>
</article>
</html>