ss="columns">
  BEFORE
  <div>
    <div></div>
  </div>
  AFTER
</div>
<div class="columns" style="height:100px">
  BEFORE
  <div>
    <div></div>
  </div>
  AFTER
</div>
<div class="columns" style="height:70px">
  BEFORE
  <div>
    <div></div>
  </div>
  AFTER
</div>
<div class="columns" style="height:50px">
  BEFORE
  <div>
    <div></div>
  </div>
  AFTER
</div>
</body>
</html>
