```
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>MathML</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<p>
The equation
<math xmlns="http://www.w3.org/1998/Math/MathML" style="vertical-align: baseline">
<mrow>
<msup>
<mi style="prince-math-baseline: baseline">x</mi>
<mn>2</mn>
</msup>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
</mrow>
</math>
should be aligned correctly.
</p>
</body>
</html>
```

The result in Prince 7.1 is misaligned as you can see in the attached file.