            <span class="attrs"
                  >AXAttributes: <code>AXMathBase</code> pointing to the first in-flow child<br />
                  <code>AXMathUnder</code> pointing to the second in-flow child<br />
                  <code>AXMathOver</code> pointing to the third in-flow child
                </span>
              </td>
            </tr>
          </tbody>
        </table>
        <h4 id="el-none">`none`</h4>
        <table class="data" aria-labelledby="el-none">
          <tbody>
         