LayoutTests/fast/ruby/ruby-empty-rt.html - WebKit - Git at Google

 <html>
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 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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 <body>
 <p>The following is a test for having a &lt;rt&gt; immediately following another.</p>
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 <p>&lt;ruby&gt; uses <ruby>&lt;rt&gt;<rt>ruby</rt><rt>text</rt></ruby> to contain the annotation.
 </body>
 </html>
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	</head>
	<body>
	<p>The following is a test for having a <rt> immediately following another.</p>
	<br>
	<br>
	<p><ruby> uses <ruby><rt><rt>ruby</rt><rt>text</rt></ruby> to contain the annotation.
	</body>
	</html>