HTML version

HTML is a grammatical rule used to mark how Web information is displayed and other characteristics. It was originally invented in 1989 by Tim Berners-Lee of GERN.

HTML is based on the older language SGML definition and simplifies the language elements. These elements are used to tell the browser how to display data on the user's screen, so they have been supported by various web browser manufacturers for a long time.

HTML has the following versions in history: (Recommended learning: html tutorial)

①HTML 1.0: Working as an Internet project in June 1993 The working draft of the group (IETF) is released.

②HTML 2.0: Released as RFC 1866 in January 1995, it was declared obsolete after its release in June 2000.

③HTML 3.2: January 14, 1997, W3C recommended standard.

④HTML 4.0: December 18, 1997, W3C recommended standard.

⑤HTML 4.01 (minor improvement): December 24, 1999, W3C recommended standard.

⑥HTML 5: HTML5 is recognized as the next generation Web language. It has greatly improved the capabilities of the Web in terms of rich media, rich content, and rich applications. It is hailed as an important driving force that will eventually change the mobile Internet.

HTML plays an important role and has an important position in the rapid development of the Web. However, with the deepening of network applications, especially e-commerce applications, the shortcomings of HTML's oversimplification quickly became apparent: HTML is not extensible. HTML does not allow application developers to define custom markup for specific application environments. HTML can only be used for information display.

HTML can set the display mode of text and pictures, but it has no semantic structure, that is, HTML displays data according to layout rather than semantics. With the development of network applications, various industries have different needs for information, and these different types of information may not always be displayed in the form of web pages.

For example, when searching for data through a search engine, there are more advantages to displaying the data according to semantics rather than according to layout.

In short, the shortcomings of HTML make it poor interactivity and ambiguous semantics. These shortcomings are difficult to adapt to the requirements of the rapid development of Internet. Therefore, a standard, concise, rigorously structured and highly extensible XML was produced.

The above is the detailed content of HTML version. For more information, please follow other related articles on the PHP Chinese website!