Section+2+-+Week+8+-+XHTML+&+Validation

HTML 1.0 and 2.0 1989 - mid 1990s : Browswer wars with different "standards" HTML 3.0 1995 : Still 2 ways of doing thigns (IE and Netscape) HTML 4.0 1998 : W3C intervenes to get rid of the discrepancies, Proposed separating HTML into structure (HTML 4.0) and presentation CSS HTML 4.01 1999 : W3C rules adopted, Current standard, Birth of CSS but everyone not happy

XHTML 1.0 2000 : HTML (popular, browser friendly) and XML (strictness, extensibility)

- 7/26/06 - W3C released 8th draft of XHTML 2.0

HTML5 - Since January of 2008, Embedding of rich content within HTML instead of using proprietary programs

XHTML - is aimed to replace HTML - is almost identical to HTML 4.01 - Is a stricter (hence the validator) and cleaner version of HTML XML vs XHTML - XML is a markup language designed for describing data XHTML is HTML redifined as an XML application XHTML is a "bridge" between HTML and XML

DTD - Doctype example - <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/Xhtml1-strict.dtd">

HTML Layout:

CSS- Cascading Sheet Style HTML 1.0 HTML 2.0 HTML 3.0 HTML 4.0 HTML 4.01 -Transitional allows for legacy, non standard HTML to work -Always start each page with a DOCTYPE starts the page ends the page Everything must go in or   includes ,, etc. XHTML 1.0 -Aimed to replace HTML -Almost identical to HTML 4.01 -Stricter and cleaner version of HTML HTML 5 -Most recent html -Uses rich content within HTML -Markup, Presentation, Interaction
 * HTML versions:**

<!DOCTYPE HTML>
 * DOCTYPES**