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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-grid/grid-lanes/subgrid/grid-lanes-subgridded-to-grid-lanes/row/grid-lanes-subgrid-004a.html - WPT Dashboard Interop Dashboard
<!DOCTYPE HTML>
<html><head>
<meta charset="utf-8">
<title>CSS Grid Lanes Test: clamp child rows to the inherited subgrid tracks</title>
<link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
<link rel="match" href="grid-lanes-subgrid-004a-ref.html">
<meta name="assert" content="A grid-lanes subgrid clamps out-of-range child placements and oversized automatic spans to its inherited rows before mapping them into the parent, including opposite writing directions.">
<style>
body { margin: 0; }
grid-lanes {
display: grid-lanes;
grid-template-rows: 40px 60px 100px 40px;
gap: 4px;
width: 140px;
background: lightgrey;
margin-bottom: 10px;
}
subgrid {
display: grid-lanes;
grid-template-rows: subgrid;
grid-row: 2 / span 2;
gap: 4px;
}
item {
display: block;
width: 20px;
background: green;
}
subgrid:nth-child(2) > item { background: royalblue; }
subgrid:nth-child(3) > item { background: orange; }
subgrid:nth-child(4) > item { background: purple; }
subgrid:nth-child(5) > item { background: teal; }
subgrid:nth-child(6) > item { background: crimson; }
.vertical {
writing-mode: vertical-rl;
width: 252px;
height: 44px;
}
.vertical subgrid { writing-mode: vertical-lr; }
.vertical item {
width: auto;
height: 20px;
}
.vertical subgrid:nth-child(1) > item { background: gold; }
.vertical subgrid:nth-child(2) > item { background: salmon; }
</style>
</head>
<body>
<grid-lanes>
<subgrid><item style="grid-row: 3"></item></subgrid>
<subgrid><item style="grid-row: -5"></item></subgrid>
<subgrid><item style="grid-row: -4 / 2"></item></subgrid>
<subgrid><item style="grid-row: 2 / 5"></item></subgrid>
<subgrid><item style="grid-row: -4 / 5"></item></subgrid>
<subgrid><item style="grid-row: span 4"></item></subgrid>
</grid-lanes>
<grid-lanes class="vertical">
<subgrid><item style="grid-row: -4 / 2"></item></subgrid>
<subgrid><item style="grid-row: 2 / 5"></item></subgrid>
</grid-lanes>
</body>
</html>