testing/web-platform/tests/conformance-checkers/xhtml/elements/iframe/042-isvalid.xhtml


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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>&lt;iframe&gt;</title>
</head>
<body>
  <!-- is structured inline -->
  <p><iframe
      src="uri"
      class="class"
      xml:lang="en"></iframe></p>

  <!-- is strictly inline -->
  <p><dfn><iframe
      src="uri"
      class="class"
      xml:lang="en"></iframe></dfn></p>

</body>
</html>