Style sheet language
A stylesheet can best be compared to a format template . The basic idea here is the separation of information (data) and representation. The program that evaluates the stylesheet interprets the assigned data (text, tables, graphics, etc.) and formats them (e.g. for screen output) according to the specified rules.
Generally applicable definition
Style sheets cover all areas of interpretation (visual, audible or tactile representation). Style sheets interpret content depending on the output device (e.g. Braille readers for the blind). The content must not be changed.