<!DOCTYPE html>
<html lang="en-US" xml:lang="en-US" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>My site: About</title>
</head>
<body>
<h2>About this site</h2>

<p>Hello! I&#39;m an about page.</p>
</body>
</html>
<!DOCTYPE html>
<html lang="en-US" xml:lang="en-US" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>My site: About</title>
</head>
<body>
<h2>About this site</h2>

<p>Hello! I&#39;m an about page. My favourite HTML tag is the <strong>strong</strong> tag.</p>
</body>
</html>
Add the favourite tag line.
Add the favourite tag line.
