<!DOCTYPE html>
<html>
<head>
<title>This tests that we don't try to draw no-op borders.</title>
<style>
* {
    vertical-align: super;
    outline-style: double;
}
</style>
</head>
<body>
PASS if no ASSERT in debug.
<mark>
    <datalist>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
        <iframe></iframe>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
        <textarea></textarea>
    </datalist>
</mark>
</body>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
</script>
</html>