HTML5 declaration compatible with IE's wording

<! DOCTYPE Html> is HTML5 's statement, the mainstream of the browser only IE8 and the following version is not supported, so IE will enter the quirks mode. However, after the declaration can be forced to specify the rendering mode of IE, so <! DOCTYPE html> Statement has no effect on ie.

HTML5 is not as strict as XHTML, for the general XHTML page, basically do not pass through the universal certification standards, and instead of HTML5 declaration after the basic can be too.

HTML5 declaration compatible with IE's wording