msqrt-05

Rectangle should be placed under radical

W3C sample	WIRIS
	$$\sqrt{\begin{array}{|c|}\hline \phantom{\mathrm{ABCD}}\\ \phantom{\mathrm{ABCD}}\\ \phantom{\mathrm{ABCD}}\\ \hline\end{array}}$$

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <msqrt>
    <mtable frame="solid">
      <mtr>
        <mtd>
          <mphantom>
            <mi>ABCD</mi>
          </mphantom>
        </mtd>
      </mtr>
      <mtr>
        <mtd>
          <mphantom>
            <mi>ABCD</mi>
          </mphantom>
        </mtd>
      </mtr>
      <mtr>
        <mtd>
          <mphantom>
            <mi>ABCD</mi>
          </mphantom>
        </mtd>
      </mtr>
    </mtable>
  </msqrt>
</math>

Author: George Chavchanidze, Opera Software ASA