HTML5

presentación para el curso de iniciación al HTML5 en IAB.

Transcript

2. 1991 HTML Tags: Sir Tim Berners-Lee
4. 1994 W3C: World Wide Web Consortium
5. 1995 HTML2: tables, form-based file upload, image maps, internationalization…
6. 1997 HTML4: CSS, client-side scripting…
7. 1999 HTML4.01: bug fixes
8. 2000 XHTML1: Reformulating HTML in XML
9. 2001 WAP, Microsoft Internet Explorer 6…
10. 2001-2006 XHTML2
11. 2004 Things came to a head in a workshop meeting in 2004. Ian Hickson, who was working for Opera Software at the time, proposed the idea of extending HTML to allow the creation of web applications. The proposal was rejected. * HTML5 for Web Designers by JEREMY KEITH
12. 2005 Web Applications 1.0: by Web Hypertext Application Technology Working Group (WHATWG)
13. Some things are clearer with hindsight of several years. It is necessary to evolve HTML incrementally. The attempt to get the world to switch to XML, including quotes around values and slashes in empty tags and namespaces all at once didn't work. 2006
14. XHTML2 HTML5
15. XHTML2 HTML5
16. XHTML2 HTML5
17. XHTML2 HTML5
18. XHTML2 HTML5
19. XHTML2 HTML5
20. XHTML2 HTML5
22. Semántica: (del griego semantikos, "lo que tiene significado") se refiere a los aspectos del significado, sentido o interpretación de signos lingüísticos como símbolos, palabras, expresiones o representaciones formales.
24. menos cuento y mas compatibilidad SI, TU, EXPLORER!
25. 2008 HTML5 is gaining momentum. New elements have been specified, but in practice Internet Explorer versions 6-8 pose a problem, as they fail to recognize unknown elements; the new elements are unable to hold children and CSS has no effect on them. This depressing fact was posing quite a hindrance to HTML5 adoption. * HTML5 & CSS3 for the Real World
27. BTW, if you want CSS rules to apply to unknown elements in IE, you just have to do document.createElement(elementName). This somehow lets the CSS engine know that elements with that name exist. * Sjoerd Visscher comment on the blog of the W3C HTML Working Group co-chair, Sam Ruby
28. Ian Hickson, was as surprised as the rest of the Web. Having never heard of this trick before, he was happy to report: ‘This piece of information makes building an HTML5 compatibility shim for IE7 far easier than had previously been assumed.’ * HTML5 & CSS3 for the Real World
32. do websites need to be experienced exactly the same in every browser ?
34. SEMANTICS
35. OFFLINE & STORAGE
36. DEVICE ACCESS
37. CONNECTIVITY
38. MULTIMEDIA
39. 3D, GRAPHICS & EFFECTS
40. PERFORMANCE & INTEGRATION
41. CSS3
42. …code time!