  <span style="top: 100px"><math><mspace width="50.8mm"/></math></span>
      <span style="top: 110px; width: 192px"></span>

      <!-- pc -->
      <span style="top: 120px"><math><mspace width="12.5pc"/></math></span>
      <span style="top: 130px; width: 200px"></span>

      <!-- pt -->
      <span style="top: 140px"><math><mspace width="150pt"/></math></span>
      <span style="top: 150px; width: 200px"></span>

      <!-- % -->
      <span style="top: 160px"><math><mstyle mathsize="2000%"><mspace widt