HTML5 new Features

1. New document type, XHTML1.0 declaration file type, <! DOCTYPE html> render documents in standard format
2. You do not need to specify type properties
3. Add Header,footer Tags
4. Add Hgroup Tags
5. Add highlight Tag Mark
6. Add <figure><figcaption> Tag
7. Redefine Small Tags
8. Increase placeholder to indicate placeholder for text
9. Required the necessity of explaining attributes
10. Autofocus Auto Focus Properties
11. Audio Render video, Firefox uses OGG format, WebKit requires MP3 format
12. No video decoder specified in video
13. Video Pre-loading
14. Video control bar
15. Regular expressions
16. Local storage can permanently store large pieces of data on the client side, which most browsers can support.

Classification:

Added Tags: header,footer,hgroup,mark,figure,figcaption,audio,video,control

Added properties: Placeholder,required,autofocus,mail,

Attributes removed: Link's Type property, Script's Type property

Regular Expressions: pattern

HTML5 new Features