haikuwebkit/LayoutTests/fast/css-grid-layout/grid-item-z-index-stacking-...

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HTML

<!DOCTYPE html>
<html>
<head>
<link href="../css-intrinsic-dimensions/resources/width-keyword-classes.css" rel="stylesheet">
<link href="resources/grid.css" rel="stylesheet">
<style>
.grid {
grid-template-rows: 100px;
grid-template-columns: 200px 200px;
margin-top: 10px;
}
.red {
background-color: red;
}
.green {
background-color: green;
}
.positiveZIndex {
z-index: 10;
}
.negativeZIndex {
z-index: -5;
}
</style>
</head>
<body>
<p>This test checks that grid items with 'z-index' do produce a stacking context and that we honor the property.</p>
<p>For this test to pass, there should be no red below.</p>
<div class="grid fit-content">
<div class="sizedToGridArea green positiveZIndex firstRowFirstColumn"></div>
<div class="sizedToGridArea red firstRowFirstColumn"></div>
</div>
<div class="grid fit-content">
<div class="sizedToGridArea green firstRowFirstColumn"></div>
<div class="sizedToGridArea red negativeZIndex firstRowFirstColumn"></div>
</div>
<div class="grid fit-content">
<div class="sizedToGridArea green firstRowBothColumn"></div>
<div class="sizedToGridArea red negativeZIndex firstRowFirstColumn"></div>
<div class="sizedToGridArea red negativeZIndex firstRowSecondColumn"></div>
</div>
</body>
</html>