The basic structure contains:

Example :
					    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
					    <html>
						    <head>
							    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
							    <meta http-equiv="REFRESH" content="3;url=http://afixi.com/tutorials/html/basic.html">
							    <meta name="keywords" content="HTML, CSS, XML" /> 
							    <meta name="description" content="Free Web tutorials on HTML, CSS, XML" />
							    <title>Table Examples .::.</title>
							    <link href="example.css" rel="stylesheet" type="text/css" media="screen" />
							    <base href="/tutorials/html/" />
							    <style type="text/css">
								    hr {color:sienna;}
								    p {margin-left:20px;}
								    body {background-image:url("images/back40.gif");}
							    </style>
							    <script type="text/javascript" src="jquery.js"></script>
							    <script type="text/javascript">
									    document.getElementById("demo").innerHTML=Date();
							    </script>
						    </head>							   
						    <body>
						    </body>
					    </html>

Description About DOCTYPE

The Meta http-equiv Tag

Title, Meta Description & Meta Keywords