Keep related content together so your visitor doesn't have to go looking or think they have seen everything when infact they haven't.
For example, the content relating to CSS is all on the CSS page.
Additionally, all of the design tips are in the right column of each page. This was a strategy to encourage visitors to see other pages.
So now that you have taken a look at what CSS and XML are you can see that they have both made a significant impact on Web page design.
Not only is CSS an efficient way to design and maintain Web pages, but there are fewer incidences of errors occurring on each page. Your XHTML code will be neat and your content will be easier to manage. Because the styling is done on only one page, your site will download much faster. In today's fast paced world time is precious and visitors won't stick around waiting for a site to load.
Data storage is becoming increasingly important on the Web. Because XML uses plain text format it makes data easy to share with other applications and devices. Its ability to separate data from XHTML makes collecting data easy without having to worry about changing the XHTML when there are updates.
Because the Web is evolving quickly and being utilized by devices such as cell phones and BlackBerry's, XML and HTML have combined to create the new standard of XHTML. XHTML combines the structural aspects of XML and the formatting aspects of HTML creating a better format for other software devices to process.
It is important for Web designers to keep up-to-date with today's Web standards. As with all Technology, the Web is continuously evolving and Web designers must evolve along with it. It is important that Web sites render quickly and properly and can be utilized by other software devices.