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What is CSS3 (cascading style sheet 3)



CSS is a style sheet language used for informing the browser how to present a document. It uses markup language for describing the presentation semantic of a document. In other words, an HTML document defies the content of the file whereas the CSS fie defies how HTML elements are to be displayed.

Cascading Style Sheet 3Cascading Style Sheet 3

CSS is a mechanism used for adding style such as fonts, colors, and spacing to Web documents. CSS has multiple levels and profiles. Each level of CSS is updated from the earlier version, by adding new features. CSS version are denoted as CSS1, CSS2, CSS3, and CSS4, where the numbers are different for each version or level.

CSS3 is divided into multiple documents called “modules”. Each of these modules have new capabilities or extends the features present in CSS2. Drafting of CSS3 started when publication of the original CSS2 recommendation was released. The fist CSS3 draft were released on June 1999. CSS3 extends variety of new ways to create an impact with any designs, with quite a few important changes.

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