<!DOCTYPE html>
<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">
<!-- Fragmented OOF element with block-size percentage resolution. -->
<style>
  #multicol {
    column-count: 3;
    column-fill: auto;
    column-gap: 0px;
    /* last child is a spanner that takes up 33.33% so available height for
       .rel and .abs is 100px */
    height: 150px;
    width: 150px;
    margin-left: -50px;
  }
  .rel {
    position: relative;
  }
  .abs {
    position: absolute;
    /* offset one full 100px column (accounted for by negative margin on #multicol */
    top: 100px;
    width: 50px;
    height: 66.667%;
    background: green;
  }
  .spanner {
    column-span: all;
    height: 33.33%;
  }
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="multicol">
  <div class="rel">
    <div class="abs"></div>
    <div style="width: 10px; height: 300px;"></div>
  </div>
  <div class="spanner"></div>
</div>