Erweiterter HTML-Code

Hier ein vollumfängliches Beispiel: 

<!DOCTYPE html>
<html lang="de-DE">
  <head>
	<title>Seitentitel</title>
	<meta http-equiv="CONTENT-TYPE" content="text/html; charset=UTF-8"  />
	<meta name="viewport" content="width=device-width, initial-scale=1" />
	<meta name="description" content="Free Web tutorials">
	<!-- meta http-equiv="refresh" content="30" -->
	<!-- meta http-equiv="REFRESH" content="2; URL=index.php" -->
	<meta http-equiv="CACHE-CONTROL" content="NO-CACHE">
	<meta http-equiv="expires" content="0">
	<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
	<meta name="AUTHOR" content="BCDK">
	<meta name="DESCRIPTION" content="Beschreibung">
	<meta name="KEYWORDS" lang="de" content="Stichwort1, Stichwort2">
	<meta name="KEYWORDS" lang="en" content="word1, word2">
	<meta name="DATE" content="2018-07-04T08:49:37+02:00">
	<meta name="ROBOTS" content="nofollow, noindex">
        <meta name="format-detection" content="telephone=yes">
	<meta name="format-detection" content="email=yes">
	<link rel="shortcut icon" href="favicon-16x16.png" type="image/png" />
	<link rel="icon" href="favicon-16x16.png" type="image/png" />

	<link rel="stylesheet" type="text/css" href="style.css">

	<style>
	  body {font-family:sans-serif;}
	</style>
  </head>

  <body>
     ...
  </body>
</html>