span
                ><br />
                <span class="subrole">AXSubrole: <code>AXMathSubscriptSuperscript</code></span
                ><br />
                <span class="attrs"
                  >AXAttributes: <code>AXMathBase</code> pointing to the first in-flow child<br />
                  <code>AXMathSuperscript</code> pointing to the second in-flow child
                </span>
              </td>
            </tr>
          </tbody>
        </table>
        <h4 id="el-mtable">`mtable`</h4>
    