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Chapter 5. Defining Cascading Style Sheets > Using CSS Styles in Dreamweaver

Using CSS Styles in Dreamweaver

Cascading style sheets are a component of Dynamic HTML (DHTML), an unofficial specification grouping three technologies:

  • Cascading style sheets (CSS)— A collection of definitions formatting the appearance (such as fonts, colors, and spacing) of the content within Web pages. CSS enables you to define properties of Web page objects in a single location. CSS enables you to control formatting that cannot be controlled using HTML (such as specifying font size in points or ems).

  • Cascading style sheets-positioning (CSS-P)— Styles that enable you to position elements exactly on a Web page. Dreamweaver calls these positioning elements layers. Using Dreamweaver layers is how you can position an object at a specific point on the screen, move objects, and even hide and show objects.

  • JavaScript— A scripting language that can be embedded in a Web page and interpreted by the browser. JavaScript is added to your Web pages automatically by Dreamweaver behaviors. Dreamweaver adds client-side JavaScript, meaning that the script is interpreted by the browser and not by the server. Adding JavaScript to your Web pages enables you to create image rollovers, drag objects around the screen, pop-up message boxes, and add many different ways for the learner to interact with the online learning application.


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