Cascading Style Sheet (CSS) is discount windows 7 upgrade family used by both the authors and readers of web pages to discount windows 7 upgrade family define colors, fonts, layout, and other aspects of document presentation.

It is discount windows 7 upgrade family designed primarily to enable the separation of document content (written in HTML or a similar markup language) from document presentation (written in CSS). This separation can discount windows 7 upgrade family improve content accessibility, provide more flexibility and control in the discount windows 7 upgrade family specification of presentational characteristics, and reduce complexity and repetition in the discount windows 7 upgrade family structural content. CSS can also allow the same markup page to discount windows 7 upgrade family be presented in different styles for different rendering methods, such as on-screen, in print, by voice (when read out by a speech-based browser or screen reader) and discount windows 7 upgrade family on Braille-based, tactile devices. CSS specifies a priority scheme to determine which style rules apply if more than discount windows 7 upgrade family one rule matches against a particular element. In this so-called cascade, priorities or weights are calculated and assigned to rules, so that the results are predictable.

The CSS specifications are discount windows 7 upgrade family maintained by the World Wide Web Consortium (W3C).