<!DOCTYPE html>
<html>
<head>
<title>displaystyle</title>
<meta charset="utf-8"/>
</head>
<body>
<!-- Test the effect of displaystyle on munder, mover and munderover -->
<math>
<mstyle displaystyle="true">
<munder><mo movablelimits="true">O</mo><mo>O</mo></munder>
<mover><mo movablelimits="true">O</mo><mo>O</mo></mover>
<munderover><mo movablelimits="true">O</mo><mo>O</mo><mo>O</mo></munderover>
</mstyle>
<mstyle displaystyle="false">
<munder><mo movablelimits="true">O</mo><mo>O</mo></munder>
<mover><mo movablelimits="true">O</mo><mo>O</mo></mover>
<munderover><mo movablelimits="true">O</mo><mo>O</mo><mo>O</mo></munderover>
</mstyle>
</math>
</body>
</html>