Blitz - WPT: grid-item-margin-auto-columns-rows-vertical-lr-001.html

wpt / css / css-grid / layout-algorithm / grid-item-margin-auto-columns-rows-vertical-lr-001.html

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

Subtest	Status	Message
.grid 1	FAIL	assert_equals: data-expected-width expected 40 got 784 assert_equals: data-expected-height expected 120 got 100
.grid 2	FAIL	assert_equals: data-expected-width expected 40 got 784 assert_equals: data-expected-height expected 120 got 110
.grid 3	FAIL	assert_equals: data-expected-width expected 40 got 784 assert_equals: data-expected-height expected 120 got 110
.grid 4	FAIL	assert_equals: data-expected-width expected 40 got 784 assert_equals: data-expected-height expected 120 got 110

Enable JavaScript in test iframe

/css/css-grid/layout-algorithm/grid-item-margin-auto-columns-rows-vertical-lr-001.html

<!DOCTYPE html>
<title>CSS Grid: 'auto' sizes with item's margins with vertical-lr</title>
<link rel="author" title="Javier Fernandez" href="mailto:jfernandez@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-grid/#layout-algorithm">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=357419">
<meta name="assert" content="Check that the grid's rows and columns 'auto' sizes are updated accordingly to its grid-item's before and start margins when using vertical-lr writing mode."/>
<link href="/css/support/grid.css" rel="stylesheet">
<link href="/css/support/width-keyword-classes.css" rel="stylesheet">

<style>
.grid {
    grid-template-rows: auto auto;
    grid-template-columns: auto auto;
}

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

.marginTop {
    margin-top: 20px;
}

.marginBottom {
    margin-bottom: 20px;
}

.borderTop {
    border-top: 5px solid;
}

.borderBottom {
    border-bottom: 5px solid;
}

.paddingTop {
    padding-top: 10px;
}

.paddingBottom {
    padding-bottom: 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')">
<div>
    <div class="grid fit-content verticalLR" data-expected-width="40" data-expected-height="120">
        <div class="gridItem marginTop firstRowFirstColumn"></div>
        <div class="gridItem marginBottom firstRowSecondColumn"></div>
        <div class="gridItem secondRowFirstColumn"></div>
        <div class="gridItem secondRowSecondColumn"></div>
    </div>
</div>

<div>
    <div class="grid fit-content verticalLR" data-expected-width="40" data-expected-height="120">
        <div class="gridItem marginTop paddingTop firstRowFirstColumn"></div>
        <div class="gridItem borderTop borderBottom firstRowSecondColumn"></div>
        <div class="gridItem secondRowFirstColumn"></div>
        <div class="gridItem secondRowSecondColumn"></div>
    </div>
</div>

<div>
    <div class="grid fit-content verticalLR" data-expected-width="40" data-expected-height="120">
        <div class="gridItem marginTop paddingTop firstRowFirstColumn"></div>
        <div class="gridItem borderTop borderBottom firstRowSecondColumn"></div>
        <div class="gridItem secondRowFirstColumn"></div>
        <div class="gridItem secondRowSecondColumn"></div>
    </div>
</div>

<div>
    <div class="grid fit-content verticalLR" data-expected-width="40" data-expected-height="120">
        <div class="gridItem marginTop paddingTop firstRowFirstColumn"></div>
        <div class="gridItem paddingBottom firstRowSecondColumn"></div>
        <div class="gridItem secondRowFirstColumn"></div>
        <div class="gridItem secondRowSecondColumn"></div>
    </div>
</div>
</body>