<!DOCTYPE html> <html lang=“en”>
<head>
<meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title>
</head>
<body>
<h2>Hello world</h2>
</body>
</html>
<!DOCTYPE html> <html lang=“en”>
<head>
<meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title>
</head>
<body>
<h2>Hello world</h2>
</body>
</html>