wpt / css / css-box / margin-trim / computed-margin-values / grid-inline-start.html

Status: FAIL | Duration: 3ms | Subtests: 1/5 | Open test on wpt.live | wpt.fyi

TestTest SourceSubtests (1/5)

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

SubtestStatusMessage
grid > item 1FAILassert_equals: data-expected-margin-left expected 0 got 30
grid > item 2PASS
grid > item 3FAILassert_equals: data-expected-margin-left expected 0 got 40.2
grid > item 4FAILassert_equals: data-expected-margin-left expected 0 got -30
grid > item 5FAILassert_equals: data-expected-margin-left expected 0 got 10

/css/css-box/margin-trim/computed-margin-values/grid-inline-start.html

<!DOCTYPE html>
<html>
<head>
<link rel="author" href="mailto:sammy.gill@apple.com">
<link rel="help" href="https://drafts.csswg.org/css-box-4/#margin-trim-grid">
<meta name="assert" content="trimmed inline-start margins in grid should be reflected in computed style">
</head>
<style>
grid {
    display: grid;
    width: min-content;
    outline: 1px solid black;
    grid-template-columns: repeat(2, auto);
    margin-trim: inline-start;
}
item {
    display: block;
    width: 50px;
    height: 50px;
}
.locked-position {
    grid-row: 3;
    grid-column: 1;
    margin-inline-start: -30px;
}
item:nth-child(1) {
    background-color: green;
    margin-inline-start: 30px;
}
item:nth-child(2) {
    background-color: blue;
    margin-inline-start: 10px;
}
item:nth-child(3) {
    background-color: orchid;
    margin-inline-start: 10%;
}
item:nth-child(4) {
    background-color: maroon;
}
item:nth-child(5) {
    background-color: salmon;
    width: auto;
    grid-column: span 2;
    margin-inline-start: 10px;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/check-layout-th.js"></script>
<body onload="checkLayout('grid > item')">
    <div id="target">
    <grid>
        <item data-expected-margin-left="0"></item>
        <item data-expected-margin-left="10"></item>
        <item data-expected-margin-left="0"></item>
        <item class="locked-position" data-expected-margin-left="0"></item>
        <item data-expected-margin-left="0"></item>
    </grid>
    </div>
</body>
</html>