从浏览器渲染看标准的重要性

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浏览器渲染和W3C标准的关联

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从浏览器渲染看标准的重要性

  1. 1. ( )
  2. 2. ( ) TwinsenLiang
  3. 3. • 94 Netscape • 95 IE Netscape Javascript • 96 IE3.0 “ ”
  4. 4. • 94 Netscape • 95 IE Netscape Javascript • 96 IE3.0 “ ”
  5. 5. XHTML XHTML
  6. 6. XHTML XHTML
  7. 7. XHTML XHTML
  8. 8. XHTML XHTML 1.
  9. 9. XHTML XHTML 1. 2.
  10. 10. XHTML XHTML 1. 2. 3.
  11. 11. XHTML XHTML 1. 2. 3. 4. -_-!
  12. 12. DOM • tag attribute tag • HashTable[i] i Tag
  13. 13. HTML Tidy
  14. 14. IE8
  15. 15. IE8
  16. 16. SA IE8
  17. 17. FF SA IE8 IE7
  18. 18. FF SA OP IE8 IE7
  19. 19. FF SA OP IE8 IE7
  20. 20. • • IE
  21. 21. • • IE IE
  22. 22. • TOP=TOP+1 CPU • HTML Tidy • Google XHTML1.0 XML http:// www.google.com.hk/m?dc=gbackstop
  23. 23. Introduction to TIDY When editing HTML it's easy to make mistakes. Wouldn't it be nice if there was a simple way to fix these mistakes automatically and tidy up sloppy editing into nicely layed out markup? Well now there is! Dave Raggett's HTML TIDY is a free utility for doing just that. It also works great on the atrociously hard to read markup generated by specialized HTML editors and conversion tools, and can help you identify where you need to pay further attention on making your pages more accessible to people with disabilities. Tidy is able to fix up a wide range of problems and to bring to your attention things that you need to work on yourself. Each item found is listed with the line number and column so that you can see where the problem lies in your markup. Tidy won't generate a cleaned up version when there are problems that it can't be sure of how to handle. These are logged as "errors" rather than "warnings".
  24. 24. HTML Tidy HTML Dave Raggett HTML XXX Tidy Tidy “ ” “ ”
  25. 25. 1. XHTML 4 HTML5.0 2. doctype chrome 3. 4. “ ”
  26. 26. Html Validator
  27. 27. Html Validator
  28. 28. Thanks Q&A

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