Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-grid/grid-lanes/tentative/grid-placement/grid-lanes-grid-placement-named-lines-dense-packing-001.html - WPT Dashboard Interop Dashboard
<!DOCTYPE HTML>
<!--
Any copyright is dedicated to the Public Domain.
-->
<html>
<head>
<meta charset="utf-8">
<title>CSS Grid Test: Definite column placement in a grid-lanes grid (double edge) with dense-packing enabled</title>
<link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
<link rel="author" title="Celeste Pan" href="mailto:celestepan@microsoft.com">
<link rel="match" href="grid-lanes-grid-placement-named-lines-dense-packing-001-ref.html">
<style>
body,html { color:black; background:white; font:15px/1 monospace; padding:0; margin:0; }
.grid {
display: grid-lanes;
position: relative;
border: 1px solid;
grid-template-columns: [A-start] 60px 60px 60px;
/* This creates implicit B-start and B-end lines, and A-start and E-end lines. */
grid-template-areas: "B A";
grid-auto-flow: dense;
grid-auto-columns: 40px;
gap: 0 1px;
}
x {
background: grey;
}
y {
position: absolute;
border: 1px solid blue;
bottom:0;height:0;left:0;right:0;
}
</style>
</head>
<body>
<pre>grid-column: / span A-start 2</pre>
<div class="grid">
<x style="grid-column:1"> </x>
<!-- This creates 1 extra grid-lines at the end of the container named A-start, which creates 2 implicit tracks. -->
<x style="grid-column:-1/span A-start 2">-1</x>
<x style="grid-column:4/span A-start 2">4</x>
<x style="grid-column:-2/span A-start 2">-2</x>
<x style="grid-column:-3/span A-start 2">-3</x>
<x style="grid-column:-4/span A-start 2">-4</x>
<!-- This creates an implicit track at the beginning of the container, and will span until it hits 2 lines named A-start. -->
<x style="grid-column:-5/span A-start 2">-5</x>
<!-- "A-start -1" implies we are looking for the first line to the left of -1 named A-start -->
<x style="grid-column:A-start -1/span A-start 2">A -1</x>
<!-- There are no lines named B, all implicit lines are named B, go left until we find the first implicit line named B, which turns out to be line -5.-->
<x style="grid-column:B -1/span A-start 2">B -1</x>
<x style="grid-column:A-start -2/span A-start 2">A -2</x>
<x style="grid-column:A-start -3/span A-start 2">A -3</x>
<x style="grid-column:A-start -4/span A-start 2">A -4</x>
<x style="grid-column:A-start -5/span A-start 2">A -5</x>
<x style="grid-column:A-start/span A-start 2">A</x>
<!-- Starts at B, spans until the next B, but there is no next B, so all implicit lines are named B, so it ends at the first implicit line. -->
<x style="grid-column:B/span B">B</x>
<x style="grid-column:A-start 1/span A-start 2">A 1</x>
<x style="grid-column:A-start 2/span A-start 2">A 2</x>
<x style="grid-column:A-start 3/span A-start 2">A 3</x>
<x style="grid-column:A-start 4/span A-start 2">A 4</x>
<x style="grid-column:A-start 5/span A-start 2">A 5</x>
<!-- These lines are explicitly placed to mark the top of where the gray boxes should go. -->
<y style="grid-column:-1/span A-start 2; top:0em"></y>
<y style="grid-column:4/span A-start 2; top:1em"></y>
<y style="grid-column:-2/span A-start 2; top:2em"></y>
<y style="grid-column:-3/span A-start 2; top:3em"></y>
<y style="grid-column:-4/span A-start 2; top:4em"></y>
<y style="grid-column:-5/span A-start 2; top:1em"></y>
<y style="grid-column:A-start -1/span A-start 2; top:5em"></y>
<y style="grid-column:B -1/span A-start 2; top:2em"></y>
<y style="grid-column:A-start -2/span A-start 2; top:6em"></y>
<y style="grid-column:A-start -3/span A-start 2; top:3em"></y>
<y style="grid-column:A-start -4/span A-start 2; top:5em"></y>
<y style="grid-column:A-start -5/span A-start 2; top:7em"></y>
<y style="grid-column:A-start/span A-start 2; top:8em"></y>
<y style="grid-column:B/span B; top:9em"></y>
<y style="grid-column:A-start 1/span A-start 2; top:10em"></y>
<y style="grid-column:A-start 2/span A-start 2; top:7em"></y>
<y style="grid-column:A-start 3/span A-start 2; top:4em"></y>
<y style="grid-column:A-start 4/span A-start 2; top:0em"></y>
<y style="grid-column:A-start 5/span A-start 2; top:1em"></y>
</div>
</body>
</html>