mtable-10

Right hand side of equation should look like mirrored copy of left hand side

W3C sample	WIRIS
	$$\begin{array}{ccc}\underset{\phantom{\text{fail}}}{\mathrm{HT}}& =& \mathrm{TH}\end{array}$$

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <mtable rowalign="top">
    <mtr>
      <mtd>
        <munder>
          <mi mathvariant="normal">HT</mi>
          <mphantom>
            <mtext>fail</mtext>
          </mphantom>
        </munder>
      </mtd>
      <mtd>
        <mo>=</mo>
      </mtd>
      <mtd>
        <mi mathvariant="normal">TH</mi>
      </mtd>
    </mtr>
  </mtable>
</math>

Author: George Chavchanidze, Opera Software ASA