HTML5 Page Layout-1

1. New features in HTML5

In HTML, the beginning of the declaration is this:

<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">

Where the root element of the document is declared to be HTML, it is defined in the DTD that the public identifier is defined as "-//W3C//DTD XHTML 1.0 transitional//en".

The browser will understand how to find a DTD that matches this public identifier. If it is not found, the browser uses the URL following the public identifier as the location for the DTD.

Also, be aware that the three document types specified in HTML 4.01, the three types of XML documents specified in XHTML 1.0 are: Strict, transitional, and Frameset.

And this sentence

　　

　　

HTML5 is no longer so cumbersome, just need:

<! DOCTYPE html> will be all right.

HTML5 Page Layout-1