wpt / css / css-grid / alignment / grid-item-auto-margins-alignment.html

Status: FAIL | Duration: 4ms | Subtests: 4/8 | Open test on wpt.live | wpt.fyi

TestTest SourceSubtests (4/8)

Data from commit:
1efe22d Fix duplicate table cell padding with float layout (#675) (2026-08-10)

SubtestStatusMessage
.grid 1PASS
.grid 2PASS
.grid 3PASS
.grid 4PASS
.grid 5FAILassert_equals: data-offset-x expected 140 got 724 assert_equals: data-offset-x expected 0 got 584 assert_equals: data-offset-x expected 180 got 764 assert_equals: data-offset-x expected 40 got 624
.grid 6FAILassert_equals: data-offset-x expected 140 got 724 assert_equals: data-offset-x expected 40 got 624 assert_equals: data-offset-x expected 140 got 724 assert_equals: data-offset-x expected 40 got 624
.grid 7FAILassert_equals: data-offset-x expected 140 got 724 assert_equals: data-offset-x expected 0 got 584 assert_equals: data-offset-x expected 180 got 764 assert_equals: data-offset-x expected 40 got 624
.grid 8FAILassert_equals: data-offset-x expected 140 got 724 assert_equals: data-offset-x expected 40 got 624 assert_equals: data-offset-x expected 140 got 724 assert_equals: data-offset-x expected 40 got 624

/css/css-grid/alignment/grid-item-auto-margins-alignment.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Grid Layout test: align-self and justify-self with auto margins</title>
<link rel="author" title="Rossana Monteriso" href="mailto:rmonteriso@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-grid/#auto-margins">
<link rel="help" href="https://drafts.csswg.org/css-align-3/#propdef-align-items">
<meta name="assert" content="This test checks that align-self and justify-self properties are not applied when there is auto-margin in the corresponding axis. Instead, auto-margin alignment should be applied, both for LTR and RTL directions.">
<meta name="flags" content="ahem">
<link rel="stylesheet" href="/css/support/grid.css">
<link rel="stylesheet" href="/css/support/alignment.css">
<link rel="stylesheet" href="/css/support/width-keyword-classes.css">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />

<style>
.grid {
    grid-template-columns: 100px 100px;
    grid-template-rows: 200px 200px;
    margin-bottom: 20px;
}

.item {
    width: 20px;
    height: 40px;
}

.autoMarginTop { margin-top: auto; }
.autoMarginRight { margin-right: auto; }
.autoMarginBottom { margin-bottom: auto; }
.autoMarginLeft { margin-left: auto; }
.autoMargin { margin: auto; }
</style>

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<script type="text/javascript">
  setup({ explicit_done: true });
</script>

<body onload="document.fonts.ready.then(() => { checkLayout('.grid'); })">

<p>This test checks that align-self and justify-self properties are not applied when there is auto-margin in the corresponding axis. Instead, auto-margin alignment should be applied.</p>

<p>Direction: LTR | Self Alignment: center | fixed size items | 1 auto-margin</p>
<div style="position: relative">
    <div class="grid fit-content itemsCenter">
        <div class="item autoMarginTop firstRowFirstColumn" data-offset-x="40" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMarginRight firstRowSecondColumn" data-offset-x="100" data-offset-y="80" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMarginLeft secondRowFirstColumn" data-offset-x="80" data-offset-y="280" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMarginBottom secondRowSecondColumn" data-offset-x="140" data-offset-y="200" data-expected-width="20" data-expected-height="40"></div>
    </div>
</div>

<p>Direction: LTR | Self Alignment: start | fixed size items | 4 auto-margin</p>
<div style="position: relative">
    <div class="grid fit-content">
        <div class="item autoMargin firstRowFirstColumn" data-offset-x="40" data-offset-y="80" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMargin firstRowSecondColumn" data-offset-x="140" data-offset-y="80" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMargin secondRowFirstColumn" data-offset-x="40" data-offset-y="280" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMargin secondRowSecondColumn" data-offset-x="140" data-offset-y="280" data-expected-width="20" data-expected-height="40"></div>
    </div>
</div>

<p>Direction: LTR | Self Alignment: center | auto size items | 1 auto-margin</p>
<div style="position: relative">
    <div class="grid fit-content itemsCenter">
        <div class="autoMarginTop firstRowFirstColumn" data-offset-x="40" data-offset-y="160" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMarginRight firstRowSecondColumn" data-offset-x="100" data-offset-y="80" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMarginLeft secondRowFirstColumn" data-offset-x="80" data-offset-y="280" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMarginBottom secondRowSecondColumn" data-offset-x="140" data-offset-y="200" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
    </div>
</div>

<p>Direction: LTR | Self Alignment: start | auto size items | 4 auto-margin</p>
<div style="position: relative">
    <div class="grid fit-content">
        <div class="autoMargin firstRowFirstColumn" data-offset-x="40" data-offset-y="80" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMargin firstRowSecondColumn" data-offset-x="140" data-offset-y="80" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMargin secondRowFirstColumn" data-offset-x="40" data-offset-y="280" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMargin secondRowSecondColumn" data-offset-x="140" data-offset-y="280" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
    </div>
</div>

<!-- direction RTL -->
<p>Direction: RTL | Self Alignment: center | fixed size items | 1 auto-margin</p>
<div style="position: relative">
    <div class="grid fit-content itemsCenter directionRTL">
        <div class="item autoMarginTop firstRowFirstColumn" data-offset-x="140" data-offset-y="160" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMarginRight firstRowSecondColumn" data-offset-x="0" data-offset-y="80" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMarginLeft secondRowFirstColumn" data-offset-x="180" data-offset-y="280" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMarginBottom secondRowSecondColumn" data-offset-x="40" data-offset-y="200" data-expected-width="20" data-expected-height="40"></div>
    </div>
</div>

<p>Direction: RTL | Self Alignment: start | fixed size items | 4 auto-margin</p>
<div style="position: relative">
    <div class="grid fit-content directionRTL">
        <div class="item autoMargin firstRowFirstColumn" data-offset-x="140" data-offset-y="80" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMargin firstRowSecondColumn" data-offset-x="40" data-offset-y="80" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMargin secondRowFirstColumn" data-offset-x="140" data-offset-y="280" data-expected-width="20" data-expected-height="40"></div>
        <div class="item autoMargin secondRowSecondColumn" data-offset-x="40" data-offset-y="280" data-expected-width="20" data-expected-height="40"></div>
    </div>
</div>

<p>Direction: RTL | Self Alignment: center | auto size items | 1 auto-margin</p>
<div style="position: relative">
    <div class="grid fit-content itemsCenter directionRTL">
        <div class="autoMarginTop firstRowFirstColumn" data-offset-x="140" data-offset-y="160" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMarginRight firstRowSecondColumn" data-offset-x="0" data-offset-y="80" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMarginLeft secondRowFirstColumn" data-offset-x="180" data-offset-y="280" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMarginBottom secondRowSecondColumn" data-offset-x="40" data-offset-y="200" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
    </div>
</div>

<p>Direction: RTL | Self Alignment: start | auto size items | 4 auto-margin</p>
<div style="position: relative">
    <div class="grid fit-content directionRTL">
        <div class="autoMargin firstRowFirstColumn" data-offset-x="140" data-offset-y="80" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMargin firstRowSecondColumn" data-offset-x="40" data-offset-y="80" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMargin secondRowFirstColumn" data-offset-x="140" data-offset-y="280" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
        <div class="autoMargin secondRowSecondColumn" data-offset-x="40" data-offset-y="280" data-expected-width="20" data-expected-height="40"><div class="item"></div></div>
    </div>
</div>

</body>