src/third_party/web_platform_tests/conformance-checkers/xhtml/elements/p/025-isvalid.xhtml - cobalt - Git at Google

 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
   <title>&lt;p&gt;</title>
 </head>
 <body>
   <!-- is block -->
   <p class="class" id="id" xml:lang="en">text</p>

   <!-- can contain interactive -->
   <p><a>text</a></p>
 </body>
 </html>
	<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
	<title><p></title>
	</head>
	<body>
	<!-- is block -->
	<p class="class" id="id" xml:lang="en">text</p>

	<!-- can contain interactive -->
	<p><a>text</a></p>
	</body>
	</html>