Minimal documents

HTML 4.01 example:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
        "http://www.w3.org/TR/html4/strict.dtd">
<html>
        <head>
        <title>Title</title>
        </head>
        <body>
                Document's body
        </body>
</html>

XHTML 1.0 example:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
        "DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
        <head>
        <title>Title</title>
        </head>
        <body>
                Document's body
        </body>
</html>