<!DOCTYPE html>
<meta charset="utf-8"/>
<title>&lt;semantics&gt - mozilla bug 468059 (reference)</title>
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
  math, p {
      font: 25px Ahem;
  }
</style>
<p>
  <math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
    <semantics>
      <mstyle displaystyle="true">
        <munderover>
          <mo movablelimits="true">pXp</mo>
          <mtext>XpXpXp</mtext>
          <mtext>XpXpXp</mtext>
        </munderover>
      </msty