row-gap-decorations-021-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-rows: repeat(3, 100px);

    grid-lanes-pack: dense;

    flow-tolerance: 0;

    row-gap: 20px;

    column-gap: 16px;

    background: #cdd5e0;

    width: max-content;

  .lanes > div {

    background: #5b8def;

  .lanes > div.a { grid-row: 1; width: 24px; }

  .lanes > div.b { grid-row: 2; width: 88px; }

  .lanes > div.c { grid-row: 3; width: 240px; }

  .lanes > div.s { grid-row: 2 / span 2; width: 48px; background: #8a6df0; }

  .lanes > div.d { grid-row: 1 / span 2; width: 64px; background: #8a6df0; }

  .lanes > div.f { grid-row: 1; width: 40px; background: #1f9d6b; }

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

</style>

<div class="lanes">

  <div class="a"></div>

  <div class="b"></div>

  <div class="c"></div>

  <div class="s"></div>

  <div class="d"></div>

  <div class="f"></div>

</div>

<div class="col-rule" style="left: 30px; top: 0; height: 100px;"></div>

<div class="col-rule" style="left: 94px; top: 0; height: 100px;"></div>

<div class="col-rule" style="left: 94px; top: 120px; height: 100px;"></div>

<div class="col-rule" style="left: 246px; top: 120px; height: 100px;"></div>

<div class="col-rule" style="left: 246px; top: 240px; height: 100px;"></div>