Let's take a look at the technical descriptions of the eight classes listed in W3.org:
A. Semantic features (Class: Semantic)
HTML5 provides a better meaning and structure for webpages. With the support of RDFa, micro-data, and micro-mode, more rich tags will be used to build a data-driven Web that is more valuable to programs and users.
B. Local STORAGE features (Class: OFFLINE & STORAGE)
Web apps developed based on HTML5 have a shorter startup time and faster networking speed, thanks to the HTML5 APP Cache and local storage functions. Indexed DB (one of the most important technologies for HTML5 local storage) and API instructions.
C. DEVICE compatibility (Class: device access)
Since the Open API documentation of the Geolocation function, HTML5 provides webpage application developers with more optimization options and more advantages of experience functions. HTML5 provides an unprecedented open interface for data and application access. External applications can be directly connected to data in the browser. For example, videos and videos can be directly connected to microphones and cameras.
D. Connection features (Class: CONNECTIVITY)
More effective connection efficiency enables real-time page-based chat, faster web game experience, and more optimized online communication. HTML5 has a more effective Server push technology. Server-Sent Event and WebSockets are two of them. These two features can help us implement the Server's function of pushing data to the client.
E. webpage MULTIMEDIA features (Class: MULTIMEDIA)
Supports web-based multimedia functions such as Audio and Video, and complements the built-in APPS, cameras, and Audio and Video functions of the website.
F. 3D, Graphics, and special Effects (Class: 3D, Graphics & Effects)
Based on the 3D functions of SVG, Canvas, WebGL, and CSS3, users will be amazed at the amazing visual effects displayed in the browser.
G. Performance and Integration features (Class: Performance & Integration)
No user will always wait for your Loading-HML5 to help your Web applications and websites work faster in a variety of environments through XMLHttpRequest2 and other technologies.
H. CSS3 features (Class: CSS3)
CSS3 provides more styles and stronger effects without sacrificing the performance and semantic structure. In addition, compared with the previous Web layout, the Web open font format (WOFF) also provides higher flexibility and control.