<!DOCTYPE html>
<title>
  Multi-line row flex fragmentation: break-before:avoid and column balancing.
</title>
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#pagination">
<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
<style>
  #flex {
    display: flex;
    flex-wrap: wrap;
  }
  #flex > div {
    width: 50px;
  }
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div style="width:100px; height:100px; background:red;">
  <div style="width: 100px; columns: 2; column-gap: 0;position: relative; background: green;">
    <div id="flex">
      <div style="height: 25px;"></div>
      <div style="height: 50px; break-before:avoid;"></div>
      <div style="height: 5px; width: 25px;"></div>
      <div style="height: 25px; width: 25px; break-before: avoid;"></div>
      <div style="height: 50px;"></div>
      </div>
    </div>
  </div>
</div>