<!DOCTYPE html>
<html>
  <title>CSS Reference: max-height block fragmentation</title>
  <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
  <link rel="author" title="Mozilla" href="https://www.mozilla.org/">
  <style>
  .multicol {
    height: 30px;
    width: 100px;
    column-width: 30px;
    column-fill: auto;
    border: 2px solid orange;
  }
  .block {
    display: block;
    background: teal;
    border: 5px solid black;
    border-top-width: 0;
    height: 40px;
  }
  .child {
    display: block;
    width: 50%;
    height: 80px;
  }
  img.child { background: salmon; }
  div.child { background: purple; }
  </style>

  <div class="multicol">
    <main class="block">
      <img src="" class="child"><div class="child"></div>
    </main>
  </div>
</html>
