munder-03

Formatting of right hand side of equation should be identical to formatting of left hand side

W3C sample	WIRIS
	$$\underset{\genfrac{}{}{0ex}{}{\mathrm{first\; under\; script}}{\mathrm{second\; one}}}{\mathrm{BASE}}=\underset{\phantom{\mathrm{fail}}}{\underset{\genfrac{}{}{0ex}{}{\mathrm{first\; under\; script}}{\mathrm{second\; one}}}{\mathrm{BASE}}}$$

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <munder>
    <mi mathvariant="normal">BASE</mi>
    <mrow>
      <mfrac linethickness="0">
        <mi mathvariant="normal">first under script</mi>
        <mi mathvariant="normal">second one</mi>
      </mfrac>
    </mrow>
  </munder>
  <mo>=</mo>
  <munder>
    <mrow>
      <munder>
        <mi mathvariant="normal">BASE</mi>
        <mrow>
          <mfrac linethickness="0">
            <mi mathvariant="normal">first under script</mi>
            <mi mathvariant="normal">second one</mi>
          </mfrac>
        </mrow>
      </munder>
    </mrow>
    <mphantom>
      <mi mathvariant="normal">fail</mi>
    </mphantom>
  </munder>
</math>

Author: George Chavchanidze, Opera Software ASA