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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>lspace/rspace default value for unknown operators (reference)</title>
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
math {
font: 100px/1 Ahem;
}
mo {
color: blue;
}
</style>
</head>
<body>
<p>This test passes if on each row, the space around the blue rectangle
is 0.2777777777777778em.</p>
<p>
<math>
<mrow>
<mn>p</mn>
<mo lspace="0.2777777777777778em" rspace="0.2777777777777778em">X</mo> <!-- Single character -->
<mn>p</mn>
</mrow>
</math>
</p>
<p>
<math>
<mrow>
<mn>p</mn>
<mo lspace="0.2777777777777778em" rspace="0.2777777777777778em">XX</mo> <!-- Multiple characters -->
<mn>p</mn>
</mrow>
</math>
</p>
<p>
<math>
<mrow>
<mn>p</mn>
<mo form="infix" lspace="0.2777777777777778em" rspace="0.2777777777777778em">X</mo> <!-- Explicit form -->
<mn>p</mn>
</mrow>
</math>
</p>
</body>
</html>