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Cascading Style Sheets (CSS)

Style sheets refer to a set of rules that allow you to control how you would like your document to be rendered. It is a mechanism to primarily separate presentation from content. With the HTML and style sheets approach, structured content goes into the HTML document, and the appearance, or presentation information goes into a style sheet. CSS allow you to control the rendering of elements on a web page without compromising its structure. Before CSS , nearly all of the presentational attributes of an HTML document were contained within the HTML code; all font colors, background styles, alignment specification, boxes, borders, and sizes had to be explicitly described, often repeatedly, in the midst of the HTML code. CSS allows web designers to extract this information, resulting in considerably simpler HTML code, supplemented by an auxiliary style sheet written in the language of CSS . The structure and semantic markup is restricted to the HTML code, while the presentational markup is restricted to the CSS code. For more information visit: Cascading Style Sheets