1 files changed, 19 insertions, 0 deletions
diff --git a/testing/web-platform/tests/conformance-checkers/xhtml/elements/iframe/042-isvalid.xhtml b/testing/web-platform/tests/conformance-checkers/xhtml/elements/iframe/042-isvalid.xhtml
new file mode 100644
index 000000000..236e5d069
--- /dev/null
+++ b/testing/web-platform/tests/conformance-checkers/xhtml/elements/iframe/042-isvalid.xhtml
@@ -0,0 +1,19 @@
+<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>