HTML Tutorial

I went start a chine tune about HTML. So dear friends at first know about a simple HTML History.

 History of HTML 

HTML (HYPER TEXT MARKUP LANGUAGE) ) Hyper text Markup Language is the main markup language for creating web pages and other information that can be displayed in a web browser.

In 1980, physicist Tim Berners-Lee, who was a contractor at CERN, proposed and prototyped ENQUIRE, a system for CERN researchers to use and share documents. In 1989, Berners-Lee wrote a memo proposing an Internet-based hypertext system. Berners-Lee specified HTML (HYPER TEXT MARKUP LANGUAGE) and wrote the browser and server software in the last part of 1990. In that year, Berners-Lee and CERN data systems engineer Robert Cailliau collaborated on a joint request for funding, but the project was not formally adopted by CERN. In his personal notes from 1990 he listed "some of the many areas in which hypertext is used" and put an encyclopedia first.

The first publicly available description of HTML (HYPER TEXT MARKUP LANGUAGE)  was a document called "HTML (HYPER TEXT MARKUP LANGUAGE)  Tags", first mentioned on the Internet by Berners-Lee in late 1991. It describes 18 elements comprising the initial, relatively simple design of HTML (HYPER TEXT MARKUP LANGUAGE) . Except for the hyperlink tag, these were strongly influenced by SGMLguid, an in-house SGML-based documentation format at CERN. Eleven of these elements still exist in HTML (HYPER TEXT MARKUP LANGUAGE)  4.

HyperText Markup Language is a markup language that web browsers use to interpret and compose text, images and other material into visual or audible web pages. Default characteristics for every item of HTML (HYPER TEXT MARKUP LANGUAGE)  markup are defined in the browser, and these characteristics can be altered or enhanced by the web page designer's additional use of CSS. Many of the text elements are found in the 1988 ISO technical report TR 9537 Techniques for using SGML, which in turn covers the features of early text formatting languages such as that used by the RUNOFF command developed in the early 1960s for the CTSS (Compatible Time-Sharing System) operating system: these formatting commands were derived from the commands used by typesetters to manually format documents. However, the SGML concept of generalized markup is based on elements (nested annotated ranges with attributes) rather than merely print effects, with also the separation of structure and markup; HTML (HYPER TEXT MARKUP LANGUAGE)  has been progressively moved in this direction with CSS.

Berners-Lee considered HTML (HYPER TEXT MARKUP LANGUAGE)  to be an application of SGML. It was formally defined as such by the Internet Engineering Task Force (IETF) with the mid-1993 publication of the first proposal for an HTML (HYPER TEXT MARKUP LANGUAGE)  specification: "Hypertext Markup Language (HTML (HYPER TEXT MARKUP LANGUAGE) )" Internet-Draft by Berners-Lee and Dan Connolly, which included an SGML Document Type Definition to define the grammar.The draft expired after six months, but was notable for its acknowledgment of the NCSA Mosaic browser's custom tag for embedding in-line images, reflecting the IETF's philosophy of basing standards on successful prototypes.^[9] Similarly, Dave Raggett's competing Internet-Draft, "HTML (HYPER TEXT MARKUP LANGUAGE) + (Hypertext Markup Format)", from late 1993, suggested standardizing already-implemented features like tables and fill-out forms.

After the HTML (HYPER TEXT MARKUP LANGUAGE)  and HTML (HYPER TEXT MARKUP LANGUAGE) + drafts expired in early 1994, the IETF created an HTML (HYPER TEXT MARKUP LANGUAGE)  Working Group, which in 1995 completed "HTML (HYPER TEXT MARKUP LANGUAGE)  2.0", the first HTML (HYPER TEXT MARKUP LANGUAGE)  specification intended to be treated as a standard against which future implementations should be based.

Further development under the auspices of the IETF was stalled by competing interests. Since 1996, the HTML (HYPER TEXT MARKUP LANGUAGE)  specifications have been maintained, with input from commercial software vendors, by the World Wide Web Consortium (W3C).^[ However, in 2000, HTML (HYPER TEXT MARKUP LANGUAGE)  also became an international standard (ISO/IEC 15445:2000). HTML (HYPER TEXT MARKUP LANGUAGE)  4.01 was published in late 1999, with further errata published through 2001. In 2004 development began on HTML (HYPER TEXT MARKUP LANGUAGE) 5 in the Web Hypertext Application Technology Working Group (WHATWG), which became a joint deliverable with the W3C in 2008.

INFORMATION
http://en.wikipedia.org/wiki/HTML#History