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Tag Soup

Tag Soup. What is HTML4.01, XHTML1.0, XHTML1.1, XHTML2, HTML5 or HTML 5 and WHATWG with W3C Confused??. What we know. HTML was created by Timothy Berner Lees around 1990

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Tag Soup

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  1. Tag Soup What is HTML4.01, XHTML1.0, XHTML1.1, XHTML2, HTML5 or HTML 5 and WHATWG with W3C Confused??

  2. What we know • HTML was created by Timothy Berner Lees around 1990 • HTML evolved into different versions over the years by standards groups. In particular, W3C was a primary developer. HTML 1.0, 2.0, 3.0, 3.2, 4.01. Each version added new tags and capabilities and sometimes streamlined areas of confusion. • Remember standards are only as good as: • Browsers implementing them • Authors using them in documents

  3. Enter XHTML • After HTML 4.01 was written then XHTML 1.0 was created. XHTML stands for Extensible Hypertext Markup Language • The XHTML 1.0 specification is identical to HTML 4.01 (no new elements) but the syntax was different – more strict – for example, can’t mix upper and lower case. XHTML 1.0 required authors to follow the rules used in writing XML • Then came XHTML 1.1 – this was different and authors needed to use an xml mime type rather than a text/html type. But, wait IE doesn’t render that!

  4. Enter XHTML • W3C begins working on XHTML 2 • XHTML2 was not backwards compatible with HTML!!!! • In 2004 a subgroup within W3C rebels and creates their own group called WHATWG and starts working on HTML5 • October 2006 Sir Timothy Berner Lees announces the move to XML is not working and subsequently the work on XHTML 2 is stopped.

  5. XHTML Grows UP • In 2009 W3C formally announces the charter for XHTML 2 will not be renewed • Keep in mind XHTML 1 and XHTML2 have nothing in common • W3C welcomes the WHATWG group back into W3C and creates group to continue work on HTML5 • Conclusion: XHTML 1.0 and HTML4.01 and HTML5 are good. • Conclusion: XHTML 1.1 and XHTML 2 and HTML < 4.01 bad 

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