Sentence:  The concept of creating <WSD>styles</WSD> has been around since long before the Web. Desktop publishing programs, such as Adobe InDesign, and even word processing programs, such as Microsoft Word, have long used <WSD>styles</WSD> to manage the formatting and editing of text on printed pages. 
Meaning of the word marked with <WSD> tags:  A visual or other modification to text or other elements of a document, such as boldface or italics.