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  1. 1. FACS 2930 Carmen Au
  2. 2. Content  The W3C  HTML  What is That?  HTML, What is That?  Where Did it Come From?  CSS  CSS  CSS2  XHTML  So What is XHTML?  Why XHTML?  Why XHTML cont.  Let’s Put It all Together  What Next?  Credits / Sources
  3. 3. The W3C “The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards…”  http://www.w3.org/Consortium/
  4. 4. What is This? <h1>Title goes here</h1> <h2>Sub title if wanted</h2> <p>Text here, <a href=“url”>link here</a>, text here, text here, <b>bold text</b>, text here, <i>italic text here</i></p>
  5. 5. HTML, What is That?  HyperText Markup Language  Computer language that allows website creation.  Product of SGML (Standard Generalized Markup Language)  A complex, technical specification describing markup languages  Allows people not familiar with SGML to publish and exchange scientific documents  People not in the discipline of scientific documentation quickly realized how easy it was
  6. 6. Where Did it Come From? •Tim Berners-Lee • Wanted to create a way for researchers to be able to use the internet to collaborate and share information. • Wanted a system by which people could link all their data together and enable people to be able to search by following the links http://www.masternewmedia.org/images/ti m_berners_lee_main.jpg
  7. 7. CSS  Cascading Style Sheet  Separates the coding of presentation and content  Presentation side  Visual changes only needed to be applied once  Coding  In a different document  Each section has a head and { }s
  8. 8. CSS2  CSS2 published by W3C in 1998.  CSS2 adds support for other media types.  Aural (hearing) sheet styles and bidirectional ( both directions, LtR and RtL) text.  New properties for tables, text, colors and positioning
  9. 9. So What is XHTML?  XHTML  ' X ' representing that this version of HTML is based on XML (eXtensible Markup Language) instead of SGML.  Created in place of HTML4  Why?
  10. 10. Why XHTML  HTML pages were still sloppy  Browsers tried to accommodate, but failed  An answer to this problem was XML  eXtensible Markup Lanuage  Why / How so?  A language for creating other languages  Can be used to design own custom markup language  Custom mark up language contains tags that describe that data that they contain  A tag identifies data, it is available for other tasks
  11. 11. Why XHTML cont.  So why XHTML and not XML?  Not a lenient as HTML  Many pages already coded as HTML  W3C coded HTML as XML to create XHTML  Features of HTML  Uses XMLs syntax, allowing the power and flexibility of XML  Good foundation for CSS
  12. 12. Let’s Put It All Together  http://dm.finearts.yorku.ca/~carmenau/presentation.htm l
  13. 13. What’s Next?  HTML5  Replaced XHTML  Created instead of XHTML2  CSS3 is in development  Updates are available on the W3C.
  14. 14. Credit / Sources  http://www.xmluk.org/css-history-information.htm  http://virtuelvis.com/archives/2005/01/css-history  http://www.ironspider.ca/webdesign101/htmlhistory.htm  http://www.yourhtmlsource.com/starthere/whatishtml.html  http://www.xmluk.org/html-history-information.htm  http://www.w3.org/  http://www.intensivstation.ch/en/css/history/  Castro, E. HTML, XHTML & CSS. Sixth Edition. Berkeley: Peachpit Press, 2007.

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