embedding-element/content-document/iframe-content.html

<!DOCTYPE html>
<html>
<head>
<title>Frame content</title>
</head>
<body>
<p>This is the content of a frame.</p>
</body>
</html>
1	wakaba	1.1	<!DOCTYPE html>
2			<html>
3			<head>
4			<title>Frame content</title>
5			</head>
6			<body>
7			<p>This is the content of a frame.</p>
8			</body>
9			</html>