html5 add many new features, just to say common
- Semantic features, add a lot of labels
- Multimedia, video and audio elements for media playback
- Image effects, canvas for painting element, svg elements, etc.
- Offline & Storage, better support for local offline storage, local Store, Cookies, etc.
- Equipment compatibility features, HTML5 provides an unprecedented open access to data and application interfaces. External application can be directly connected to the data directly inside the browser,
- Connectivity features for more efficient connection efficiency, making the page-based real-time chat, web gaming experience faster, more optimized online communication has been achieved. HTML5 has a more efficient server push technology, Server-Sent Event and WebSockets is one of the two features, two features that can help us achieve server data 'push' to the client function
- Performance and integrated features, HTML5 will pass XMLHttpRequest2 and other technology to help your Web applications and websites in a diverse work environment more quickly