Website specialists who worked with early forms of HTML to make huge Web destinations were often frustrated by the amount of repetition involved in their jobs. Suppose a Web site has 200 pages, all using the same basic layout and design. To make a design change to the whole site, a planner would have needed to go in and manually alter each of those 200
Later versions of HTML have gotten around this by supporting cascading style sheets. In light of a similar standard as style templates in a word-processing or page-design program, Web designers use cascading style sheets to specify the formatting for a particular tag type—usually in a separate style sheet document—and then apply that style sheet to multiple pages. Need to make a change to the style? Simply make it in the style sheet,
and the change is applied automatically to all pages.
Although you can still format documents by using older methods—and you’ll learn how to do a little of that in this book—most Web designers rely almost exclusively on cascading style sheets for formatting these days, and XHTML all but demands that you do so. It might seem intimidating at first, but if you are creating a multi-page site, the extra trouble involved in setting up a cascading style sheet will pay for itself many times over.