<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script>
function test()
{
    var ruby = document.getElementById('R');
    var rt = document.getElementById('RT');
    ruby.removeChild(rt);    
}
</script>
</head>
<body onload="test()">
<p>The following is a test for DOM manipulation within &lt;ruby&gt;: Removing the last &lt;rt&gt;, leaving the base without ruby text.</p>
<br>
<br>
<p>&lt;ruby&gt; is defined in the <ruby id="R">HTML<rt>Hyper-text Markup Language</rt>5<rt id="RT" style="color:red">SHOULDN'T SHOW!</rt></ruby> spec.</p>
</body>
</html>