Depending on the complexity of your page, the print version might be very similar or indeed very different than the screen version.
Suggestions for print style sheets:
Figure 14.3. In a screen version, you might have a table of contents sidebar, some ads, and sans-serif fonts (which tend to be easier to read on screen).
Figure 14.4. When the document is printed, you can get rid of the sidebar and the ads, and use a serif font for added legibility. Note that the exact same (X)HTML code was used in both cases. The browser automatically selects the appropriate style sheet.