testing/web-platform/tests/css/css-break/out-of-flow-in-multicolumn-075.html


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<!DOCTYPE html>
<title>
  Out-of-flow positioned in non-containing-block in multicol.
</title>
<link rel="help" href="https://www.w3.org/TR/css-position-3/#abspos-breaking">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<style>
  .multicol {
    column-count: 4;
    column-gap: 0px;
    width: 100px;
  }
  .abs {
    position: absolute;
    background-color: green;
    height: 400px;
    width: 25px;
    top: 0;
  }
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div class="multicol">
  <div style="position: relative;">
    <div style="height: 400px; background: red"></div>
    <div style="will-change: opacity">
      <div class="abs"></div>
    </div>
  </div>
</div>