Professional XML (Programmer to Programmer)

This section includes some useful resources when working with XHTML and CSS.

• q World Wide Web Consortium (w3.org): The W3C is responsible for standardizing many XML-related technologies, including XHTML and CSS.

• q Tidy (http://www.tidy.sourceforge.net): Download the current source or binaries for Tidy for a variety of platforms. In addition, this contains links to documentation and many language wrappers.

• q Charlie's Tidy Add-ons (http://www.users.rcn.com/creitzel/tidy.html): Tidy UI for Windows and language wrappers for COM, .NET, C++ and Perl.

• q Online XHTML Validator (http://www.validator.w3.org): Handy online way to quickly check a page or block of text to determine if it is XHTML and to identify problems with the code.

• q Online CSS Validator (http://www.jigsaw.w3.org/css-validator/): Online validator to quickly check a CSS file for conformance with the standards.

• q CSS Zen Garden (http://www.csszengarden.com): An amazing example of what can be done with CSS. Many designers have created style sheets that are applied to the same XHTML, radically altering the resulting view.