<!DOCTYPE html>
<html>
<head>
<script src="resources/dump-attributed-string.js"></script>
</head>
<body>
<sup>sup element</sup>
<sub>sub element</sub>
<span style="vertical-align: super">vertical align super</span>
<span style="vertical-align: sub">vertical align sub</span>
<span style="vertical-align: 50%">vertical align 50%</span>
</body>
</html>