The use of cascading style sheets continues to change the way the Web looks and functions. To view the same page content in radically different ways, check out www.csszengarden.com (select versions in right menu). Each version is controlled by a style sheet file allowing different presentations but use the same text. The actual HTML code in each is identical and also very small. Another interesting function is the possibility to print clean pages from complex ones without a “Print Version”: www.iasummit.org/2005
Related topic on webstandardsgroup.org: Ten questions for Tommy Olsson To XHTML or not?