

  <!-- Same as above case except last item has margins. -->
  <div class="zero-width">
    <div class="floating-flexbox" data-expected-width="450">
      <div style="flex: 1 0 50px; width: 200px;">
        <div></div>
      </div>
      <div style="flex: 2 0 150px; width: 50px; margin-left: 300px;">
        <div></div>
      </div>
    </div>
  </div>

  <!-- Same as above except we now test that gaps are ignored. -->
  <div class="zero-width">
    <div class="floating-flexbox" data-expected-width="450"
 