column-gap-decorations-018-ref.html

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<!DOCTYPE html>

<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/">

<style>

  body { margin: 0; }

  .lanes {

    display: grid-lanes;

    grid-template-columns: repeat(3, 86px);

    gap: 10px;

    background: #cdd5e0;

    width: max-content;

  .lanes > div {

    background: #5b8def;

    color: #fff;

    font: 600 12px/1 sans-serif;

    text-align: center;

  .lanes > div.alt { background: #8a6df0; }

  .lanes > div.hi { background: #1f9d6b; }

  .lanes > div.i1 { height: 150px; }

  .lanes > div.i2 { grid-column: span 2; height: 90px; }

  .lanes > div.i3 { grid-column: 3; height: 130px; }

  .lanes > div.i4 { height: 80px; }

  .lanes > div.i5 { height: 90px; }

  .col-rule { position: absolute; width: 0; border-left: 4px solid blue; }

  .row-rule { position: absolute; height: 0; border-top: 4px solid gold; }

</style>

<div class="lanes">

  <div class="i1">1</div>

  <div class="i2 alt">2 (span 2)</div>

  <div class="i3 hi">3 (placed)</div>

  <div class="i4">4</div>

  <div class="i5">5</div>

</div>

<div class="col-rule" style="left: 89px; top: 0; height: 250px;"></div>

<div class="col-rule" style="left: 185px; top: 100px; height: 150px;"></div>

<div class="row-rule" style="top: 153px; left: 0; width: 86px;"></div>

<div class="row-rule" style="top: 93px; left: 96px; width: 182px;"></div>