msubsup-03

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

W3C sample	WIRIS
	$$L_x^2=L_{x_{\phantom{z}}}^{2^{\phantom{z}}}$$

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <msubsup>
    <mi>L</mi>
    <mi>x</mi>
    <mn>2</mn>
  </msubsup>
  <mo>=</mo>
  <msubsup>
    <mi>L</mi>
    <mrow>
      <msub>
        <mi>x</mi>
        <mphantom>
          <mi>z</mi>
        </mphantom>
      </msub>
    </mrow>
    <mrow>
      <msup>
        <mn>2</mn>
        <mphantom>
          <mi>z</mi>
        </mphantom>
      </msup>
    </mrow>
  </msubsup>
</math>

Author: George Chavchanidze, Opera Software ASA