<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8"/>
    <title>mo and embellished mrow/munderover (lspace=1em rspace=2em)</title>
    <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
    <style>
      math, math * {
          font: 25px/1 Ahem;
      }
    </style>
  </head>
  <body>

    <p>
      <math>
        <mtext>p</mtext><mo lspace="2em" rspace="1em">X</mo><mtext>p</mtext>
      </math>
    </p>

    <p>
      <math>
        <mtext>p</mtext>
        <mrow><mo lspace="2em" rspace="1em">X</mo></mrow>
        <mtext>p</mtext>
      </math>
    </p>

    <p>
      <math>
        <mtext>p</mtext>
        <munderover>
          <mo lspace="2em" rspace="1em">X</mo>
          <mtext>É</mtext>
          <mtext>É</mtext>
        </munderover>
        <mtext>p</mtext>
      </math>
    </p>

  </body>
</html>