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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-grid/grid-lanes/subgrid/grid-subgridded-to-grid-lanes/track-sizing/row-subgrid-extra-margin-008.html - WPT Dashboard Interop Dashboard
<!DOCTYPE HTML>
<html>
<meta charset="utf-8">
<title>CSS Grid Lanes Test: Subgrid with no grid items accommodates gutter size and padding</title>
<link rel="author" title="Alison Maher" href="mailto:almaher@microsoft.com">
<link rel="match" href="row-subgrid-extra-margin-006-ref.html">
<style>
.wrapper {
width: 110px;
height: 104px;
background: red;
}
.grid-lanes {
display: inline-grid-lanes;
grid-template-rows: repeat(2, auto);
background: red;
}
.subgrid {
display: grid;
grid-template: subgrid / auto;
grid-template-columns: auto auto auto;
background: green;
padding: 11px 3px 9px 7px;
}
</style>
</head>
<body>
<p>Test passes if there is a filled green rectangle and <strong>no red</strong>.</p>
<div class="wrapper">
<!--
Grid lanes container height = 104px (2 rows of 52px each).
Same layout and padding as row-006, but inner1/inner2 use explicit
positions (grid-row: 1 / span 2) instead of the auto-placed
`span 2` form. Per the WG resolution at
is auto-placed in a grid-lanes container, all subgrids nested
inside it are also treated as auto-placed for margin
accommodation, regardless of any explicit position they specify.
As a result the per-track sizing is identical to row-006: every
row grows to the dominant leaf's 52px contribution and the
container ends up at 2 rows * 52px = 104px.
See row-006 for how the dominant leaf's 52px is computed.
-->
<div class="grid-lanes">
<div class="subgrid" style="grid-row: span 2; gap: 20px 10px">
<div class="subgrid" style="grid-row: 1 / span 2;">
<div class="subgrid"></div>
<div class="subgrid"></div>
<div class="subgrid"></div>
<div class="subgrid"></div>
</div>
<div class="subgrid" style="grid-row: 1 / span 2;">
<div class="subgrid"></div>
<div class="subgrid"></div>
<div class="subgrid"></div>
<div class="subgrid"></div>
</div>
</div>
</div>
</div>
</body>
</html>