wpt / css / css-grid / grid-tracks-stretched-with-different-flex-factors-sum.html

Status: PASS | Duration: 3ms | Subtests: 2/2 | Open test on wpt.live | wpt.fyi

TestTest SourceSubtests (2/2)

Data from commit:
708eb61 WPT runner: support mismatch reftests and multiple rel=match links (#665) (2026-08-09)

SubtestStatusMessage
.grid 1PASS
.grid 2PASS

/css/css-grid/grid-tracks-stretched-with-different-flex-factors-sum.html

<!DOCTYPE html>
<title>CSS Grid: 'stretch' content alignment on flex tracks.</title>
<link rel="author" title="Javier Fernandez" href="mailto:jfernandez@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-align-3/#content-distribution">
<link rel="help" href="https://drafts.csswg.org/css-align-3/#valdef-align-content-stretch">
<meta name="assert" content="This test ensures that using flex tracks and 'stretch' value for the content alignment css properties work properly."/>
<link href="/css/support/grid.css" rel="stylesheet"/>
<link href="/css/support/alignment.css" rel="stylesheet"/>

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<style>
body {
  margin: 0;
}

.grid {
  position: relative;
  width: 200px;
  height: 300px;
}

.fractionFlexTracks {
  grid-template-columns: auto 0.25fr;
  grid-template-rows: 0.2fr auto;
}

.flexTracks {
  grid-template-columns: auto 1fr;
  grid-template-rows: 1.5fr auto;
}

</style>
</head>
<body onload="checkLayout('.grid')">

<div style="position: relative">
  <p>When the sum of all track's flex factor is < 1, they don't exhaust the available space, which is used to stretch the 'auto' sized tracks.</p>
  <div class="grid fractionFlexTracks contentStretch" data-expected-width="200" data-expected-height="300">
    <div class="firstRowFirstColumn" data-offset-x="0" data-offset-y="0" data-expected-width="150" data-expected-height="60"></div>
    <div class="firstRowSecondColumn" data-offset-x="150" data-offset-y="0" data-expected-width="50" data-expected-height="60"></div>
    <div class="secondRowFirstColumn" data-offset-x="0" data-offset-y="60" data-expected-width="150" data-expected-height="240"></div>
    <div class="secondRowSecondColumn" data-offset-x="150" data-offset-y="60" data-expected-width="50" data-expected-height="240"></div>
  </div>
</div>

<div style="position: relative">
  <p>When the sum of all track's flex factor is >= 1, they exhaust the available space, hence the 'stretch' alignment is not applied to the 'auto' sized tracks.</p>
  <div class="grid flexTracks contentStretch" data-expected-width="200" data-expected-height="300">
    <div class="firstRowFirstColumn" data-offset-x="0" data-offset-y="0" data-expected-width="0" data-expected-height="300"></div>
    <div class="firstRowSecondColumn" data-offset-x="0" data-offset-y="0" data-expected-width="200" data-expected-height="300"></div>
    <div class="secondRowFirstColumn" data-offset-x="0" data-offset-y="300" data-expected-width="0" data-expected-height="0"></div>
    <div class="secondRowSecondColumn" data-offset-x="0" data-offset-y="300" data-expected-width="200" data-expected-height="0"></div>
  </div>
</div>
</body>