html doctype tag

The <!DOCTYPE> you must declaration on above <html> tag to html page and which is not a html tag. When you write html page it tells to browser what version of the markup language.

The doctype in HTML 4.01 required to reference to a DTD, because HTML 4.01 based on SGML format .But html does not need to reference to a DTD and not based on SGML but need the doctype for browsers.

Note : That the <!DOCTYPE> declaration is case-insensitive.

Syntax:

<!DOCTYPE HTML>

Example Code

<!DOCTYPE HTML>
<html>
   <head>
   </head>
<body>
   <p>Content Page ...</p>
</body>
</html>

In the above example doctype have been added for html sample code.

Content