msqrt-08

Radicals below might have different shapes, but their content must share the same baseline

W3C sample	WIRIS
	$$\sqrt{\mathrm{content}}=\sqrt{{\mathrm{content}}_{\phantom{\mathrm{fail}}}}=\sqrt{{\mathrm{content}}^{\phantom{\mathrm{fail}}}}$$

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <msqrt>
    <mi>content</mi>
  </msqrt>
  <mo>=</mo>
  <msqrt>
    <msub>
      <mi>content</mi>
      <mphantom>
        <mi>fail</mi>
      </mphantom>
    </msub>
  </msqrt>
  <mo>=</mo>
  <msqrt>
    <msup>
      <mi>content</mi>
      <mphantom>
        <mi>fail</mi>
      </mphantom>
    </msup>
  </msqrt>
</math>

Author: George Chavchanidze, Opera Software ASA