x
1
2
<html>3
<body>4
5
<h1>Heading 1</h1>6
<h2>Heading 2</h2>7
<h3>Heading 3</h3>8
<h4>Heading 4</h4>9
<h5>Heading 5</h5>10
<h6>Heading 6</h6>11
12
</body>13
</html><html><body><h1>Heading 1</h1><h2>Heading 2</h2><h3>Heading 3</h3><h4>Heading 4</h4><h5>Heading 5</h5><h6>Heading 6</h6></body></html>