https://www.w3schools.com for code example
Example: html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>HTML basics</title>
</head>
<body>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>HTML basics</title>
</head>
<body>
</body>
</html>