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This article mainly introduces how many versions of html there are, with certain reference value, interested friends can refer to, I hope you have a lot of gains after reading this article, let Xiaobian take you to understand.

html has eight versions: 1,"HTML 1.0";2,"HTML 2.0";3,"HTML 3.2";4,"HTML 4.0";5,"HTML 4.01";6,"XHTML 1.0";7,"HTML5";8,"XHTML5".

Operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.

HTML stands for Hypertext Markup Language and is a markup language. It consists of a series of labels. These labels can unify the document format on the network and connect the scattered Internet resources into a logical whole. HTML text is descriptive text composed of HTML commands that describe text, graphics, animations, sounds, tables, links, etc.

HTML version

Since the early days of the Web, several versions of HTML have evolved:

HTML 1.0 1993 was released as an Internet Engineering Task Force (IETF) Working Draft in June 1993. HTML 2.0 1995 was published as RFC 1866 in January 1995 and was declared obsolete after its release in June 2000. HTML 3.2 January 14, 1997, W3C Recommendation. HTML 4.01997 December 18, 1997, W3C Recommendation. HTML 4.01 (minor improvements) December 24, 1999, W3C Recommendation. XHTML 1.02000

HTML5 is recognized as the next-generation Web language, greatly improving the Web's ability in rich media, rich content and rich applications, and is regarded as an important driver that will eventually change the mobile Internet. Internet Explorer 8 and earlier versions are not supported. XHTML52013

HTML is a syntax rule for marking how Web information is presented and other features, originally invented by Tim Berners-Lee at CERN in 1989. HTML is based on the older SGML definition and simplifies the language elements. These elements tell browsers how to present data on a user's screen, so they have long been supported by various Web browser vendors.

HTML plays an important role in the rapid development of the Web. However, with the development of web applications, especially the application of e-commerce, HTML's simplistic defects are quickly revealed: 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 how text and images are displayed, but there is no semantic structure, that is, HTML displays data according to layout rather than semantics. With the development of network applications, different industries have different needs for information, and these different types of information may not be displayed in the form of web pages. For example. When searching for data via search engines, there are many advantages to displaying data semantically rather than in terms of layout.

In a word, HTML's shortcomings make it less interactive and ambiguous, which makes it difficult to adapt to the rapid development of Internet. Therefore, a standard, concise, well-structured and highly extensible XML is produced.

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