By writing semantic, valid XHTML, the code that you create for your web site will work not only cross browser, but cross device. The web page that works in your Firefox Browser on your Windows XP computer can work in a cell phone's browser, on TV via PlayStation, and even in a braille reader.
To write semantic code, you need to understand what every element means. This series covers all the HTML elements. Part II of the series covers the elements found in the <head> of the document, including <meta>, <title>, <link>, <script>, <base> and <style>.
The Semantic XHTML Series:
Semantic XHTML - Part 1: The Required Elements
Semantic XHTML - Part 2: Elements Within the Element
Semantic XHTML - Part 3: Common Block Level Elements
Semantic XHTML - Part 4: List Elements
Semantic XHTML - Part 5: Table Elements
Semantic XHTML - Part 6: Inline Elements
Semantic XHTML - Part 7: The Phrase Elements
Semantic XHTML - Part 8: Empty Elements
Semantic XHTML - Part 9: The Image Element
Semantic XHTML - Part 10: Image Maps
Semantic XHTML - Part 11: The Object Element
Semantic XHTML - Part 12: The FORM Element
Semantic XHTML - Part 13: The INPUT Element
Semantic XHTML - Part 14: TEXTAREA and BUTTON Elements
Semantic XHTML - Part 15: Drop Down Menus
Semantic XHTML - Part 16: Organizing Forms
Semantic XHTML - Part 17: Non-Semantic Elements
Semantic XHTML - Part 18: INS, DEL & NOSCRIPT
Semantic XHTML - Table of XHTML Elements...