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[css-contain] tests for size containment's "layout in place" (#26918)
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frivoal authored Dec 16, 2020
1 parent 2350fb2 commit 5034ab1
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39 changes: 39 additions & 0 deletions css/css-contain/contain-size-064.html
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<!doctype html>
<html lang=en>
<meta charset=utf-8>
<title>CSS-contain test: size containment: layout in place</title>
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net">
<meta name=flags content="">
<meta name=assert content="The size containment box's content (including any pseudo-elements) must be laid out into the now fixed-size size containment box normally.">
<link rel="match" href="reference/contain-size-064-ref.html">
<link rel=help href="https://drafts.csswg.org/css-contain-1/#containment-size">

<style>
div { font-size: 50px; }
.red { background: red; }
.green { background: green; }
.grid {
display: grid;
grid-template-columns: min-content max-content;
}
#test { contain: size; }
#test::after { content: "\a0" ; }
</style>

<p>This test passes if there are two green rectangles and no red.

<div class=grid>
<div style="grid-area: 1/1">&nbsp;</div>
<div style="grid-area: 1/2"class=red></div><!-- will show if the size containment doesn't result in 0x0-->
<div style="grid-area: 1/3"></div>

<div class=red></div><!-- will show if the size containment doesn't result in 0x0-->
<div id=test class="grid red"><!-- will show if the size containment doesn't result in 0x0-->
<div>&nbsp;</div>
<div class=green></div><!-- won't show unless ::after is inserted and grid tracks are properly sized-->
<div class=green></div><!-- won't show unless ::after is inserted and grid tracks are properly sized-->
</div>
</div>



28 changes: 28 additions & 0 deletions css/css-contain/reference/contain-size-064-ref.html
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<!doctype html>
<html lang=en>
<meta charset=utf-8>
<title>test reference</title>
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net">
<style>
div { font-size: 50px; }
.green { background: green; }
.grid {
display: grid;
grid-template-columns: min-content max-content;
}
</style>

<p>This test passes if there are two green rectangles and no red.

<div class=grid>
<div style="grid-area: 1/1">&nbsp;</div>
<div style="grid-area: 2/2"id=test class="grid">
<div>&nbsp;</div>
<div class=green></div>
<div class=green></div>
<div>&nbsp;</div>
</div>
</div>



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