mover3

W3C sample	WIRIS
	$$\stackrel{\infty }{\underset{0}{\int }}\text{\hspace{1em}vs \hspace{1em}}\underset{0}{\overset{\infty }{\int }}$$

<math xmlns="http://www.w3.org/1998/Math/MathML" mode="display">
  <mrow>
    <mover>
      <munder>
        <mo> &#x222B;</mo>
        <mn>0</mn>
      </munder>
      <mi> &#x221E;</mi>
    </mover>
    <mtext> &#x2003;vs &#x2003;</mtext>
    <munderover>
      <mo> &#x222B;</mo>
      <mn>0</mn>
      <mi> &#x221E;</mi>
    </munderover>
  </mrow>
</math>

Author: Wolfram Research