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<!DOCTYPE html>
<title>CSS Gap Decorations: column and row rules with a densely packed spanner in grid-lanes</title>
<link rel="author" title="Javier Contreras" href="mailto:javiercon@microsoft.com">
<link rel="help" href="https://drafts.csswg.org/css-gaps-1/">
<link rel="help" href="https://drafts.csswg.org/css-grid-3/">
<link rel="match" href="column-gap-decorations-028-ref.html">
<style>
body { margin: 0; }
.lanes {
display: grid-lanes;
grid-template-columns: repeat(3, 60px);
grid-lanes-pack: dense;
flow-tolerance: 0;
gap: 10px;
background: #cdd5e0;
width: max-content;
column-rule: 4px solid blue;
row-rule: 4px solid gold;
}
.lanes > div {
background: #5b8def;
color: #fff;
font: 600 12px/1 sans-serif;
}
.lanes > div.tall { height: 100px; }
.lanes > div.last-track { grid-column: 3; height: 40px; }
.lanes > div.full-span { grid-column: 1 / -1; height: 40px; }
.lanes > div.dense-spanner {
grid-column: span 2;
height: 20px;
background: #8a6df0;
}
</style>
<div class="lanes">
<div class="tall">1</div>
<div class="last-track">2</div>
<div class="full-span">3 (span 3)</div>
<div class="dense-spanner">4 (dense span 2)</div>
</div>