mpaddedAheight3

W3C sample	WIRIS
	$\stackrel{x}{A}\stackrel{x}{A}\stackrel{x}{A}\stackrel{x}{A}\stackrel{x}{A}\stackrel{x}{A}$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mover>
      <mi>A</mi>
      <mi>x</mi>
    </mover>
    <mover>
      <mpadded height="1.5height">
        <mi>A</mi>
      </mpadded>
      <mi>x</mi>
    </mover>
    <mover>
      <mpadded height="3width">
        <mi>A</mi>
      </mpadded>
      <mi>x</mi>
    </mover>
    <mover>
      <mpadded height="150%height">
        <mi>A</mi>
      </mpadded>
      <mi>x</mi>
    </mover>
    <mover>
      <mpadded height="1ex">
        <mi>A</mi>
      </mpadded>
      <mi>x</mi>
    </mover>
    <mover>
      <mpadded height="10pt">
        <mi>A</mi>
      </mpadded>
      <mi>x</mi>
    </mover>
  </mrow>
</math>

Author: Robert Miner and Jeff Schaefer, Geometry Technologies