Refael Ackermann @alphageeks on HTML5

WTF is HTML 5?

Agenda
History (When? & Who?)
Motivation & Changes (Why? & What?)
Examples (How?)

History
1980-1990 Sir T.B.L. conjures up the WWW including a Hyper Text Markup Language
1994 – IETF takes over and form an HTML working group
1995 – HTML 2
1997 – W3C Takes charge and publishes HTML 3.2
1998 – HTML 4 – with the three flavors
2000 – XHTML 1.0
2001 – XHTML 1.1
…
Web Hypertext Application Technology Working Group
WHATWG
2009 – XHTML 2.0 still in draft – W3C closed XHTML 2 working group

Motivation & Changes (1)
Standardize common patterns
DOM Manipulation & Animation
autofocus, drag&drop, spellcheck, contenteditable
Form input validation
<input type=“number | email | url | date …”>
Mark up semantics
<header> <footer> <nav> <address>
microformats

Promote open technologies
<video> <audio> <canvas>
Web workers & cross domain communication
Web storage

Innovation
New elements & Attributes:
<section> <article> <footer> <progress> <nav> <meter> <time> <aside>
ping (on a and area) charset (on meta) async (on script)
Removed the s##ty elements:
<center> <font> <strike> <frameset>
Parsing not based on SGML

Examples
New markup (FF)
onhashchange (Chrome)
Drag & Drop (FF)
New inputs (Opera)
Video (Chrome)
Content Injection (FF)

Links
The spec draft
What can I use
WHATWG Wiki
Differences from HTML 4
Presentations by WHATWG