r
       "test htb" elements, we check the height; whereas for "test vlr" and
       "test vrl", we check the width.
    -->

  <!-- htb / vlr / {htb,vlr,vrl} -->
  <div class="cb htb"><div class="vlr">
      <div class="test htb" data-expected-height="55"></div>
  </div></div>
  <div class="cb htb"><div class="vlr">
      <div class="test vlr" data-expected-width="41"></div>
  </div></div>
  <div class="cb htb"><div class="vlr">
      <div class="test vrl" data-expected-width="41"></div>
  </div></div>
  <