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Formatting Web Pages with Style Sheets

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This way, when you want to change the look and feel of your Website, all you need to change is the style sheets. Style Sheet Fundamentals Style sheets, or more properly Cascading Style Sheets (CSS) ...

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81 Formatting Web Pages with Style Sheets I ve mentioned style sheets numerous times in the previous chapters. In particular, I have told you that certain HTML elements and attributes are deprecated or not supported in XHTML and that you should use styles instead. This chapter explains what I have been talking about. Ideally, from a programming perspective you should have several separate "layers"     that make up your Website. The content, which is the text and images you display     to the visitor, the markup, which is the HTML used to break that content into chunks of information that relate to each other, and the presentation, which is the style and formatting used to display the content. Using style sheets to control how your Website looks helps to separate content from presentation, which is a good thing. This way, when you want to change the look and feel of your Website, all you need to change is the style sheets. Style Sheet Fundamentals Style sheets, or more properly Cascading Style Sheets (CSS) , provide a method for specifying formatting in an HTML document. When you use CSS, you can avoid using most or all of the HTML tags and attributes that control formatting. Why would you want to do this? Whats wrong with the formatting tags? The main advantage of CSS is that it allows you to define the formatting of a Web page separately from the content of the Web page, as I mentioned earlier. Lets look at an example. Suppose you want to define a special appearance for certain text in your Web pages: larger than normal text in the Bazooka font, blue. Using regular HTML tags, you would do it like this: <font size="4" face="Bazooka" color="blue">This the text</font> In fact you would have to use this <font> tag for each and every instance of text that you want formatted this way. So far, so good. But then suppose your boss decides that she really wants t ...

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