<html>
<head>
<script>
if (window.testRunner)
testRunner.dumpAsText();
</script>
<style media="all" type="text/css">
body {
display: -webkit-box;
}
.test {
margin-right: -1000000;
overflow-y: auto;
}
</style>
</head>
<body>
<!-- This would previously trigger an assertion failure. Thanks to Robert
Swiecki for the test case. -->
<form class="test">
<select class="test">
<option>1</option>
</select>
</form>
<p>PASS</p>
</body>
</html>