column-gap-decorations-014-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(4, 62px);

    gap: 10px;

    background: #cdd5e0;

    width: max-content;

  .lanes > div {

    height: 44px;

    background: #5b8def;

    color: #fff;

    font: 600 12px/1 sans-serif;

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

  .sp { grid-column: 2 / span 2; height: 44px; }

  .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="sp alt">1 (span 2)</div>

  <div>2</div>

  <div>3</div>

  <div class="sp alt">4 (span 2)</div>

  <div>5</div>

  <div>6</div>

  <div>7</div>

  <div class="sp alt">8 (span 2)</div>

</div>

<div class="col-rule" style="left: 65px; top: 0; height: 206px;"></div>

<div class="col-rule" style="left: 137px; top: 108px; height: 44px;"></div>

<div class="col-rule" style="left: 209px; top: 0; height: 206px;"></div>

<div class="row-rule" style="top: 47px; left: 0; width: 62px;"></div>

<div class="row-rule" style="top: 47px; left: 72px; width: 134px;"></div>

<div class="row-rule" style="top: 101px; left: 72px; width: 134px;"></div>

<div class="row-rule" style="top: 155px; left: 72px; width: 134px;"></div>

<div class="row-rule" style="top: 47px; left: 216px; width: 62px;"></div>