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  • This WPT test may be referenced by the following Test IDs:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>CSS Grid Lanes Test: verify correct sizing of flex tracks when using a grid-lanes subgrid in a grid container</title>
<link rel="author" title="Yanling Wang" href="mailto:yanlingwang@microsoft.com">
<link rel="match" href="grid-lanes-subgrid-flex-ref.html">
<style>
grid {
display: inline grid;
grid-template-columns: 1fr 2fr 3fr;
border: 1px solid;
background: lightgrey;
}
subgrid {
display: grid-lanes;
grid-template-columns: subgrid;
grid-column: 2 / span 2;
background: lightblue;
}
</style>
</head>
<body>
<grid>
<item>1</item>
<subgrid>
<item>2</item>
<item style="width: 3ch">3</item>
<item>4</item>
</subgrid>
<item>5</item>
</grid>
</body>
</html>