A style sheet is a feature in desktop publishing programs that store and apply formatting to text. Style sheets are a form of separation of presentation and content: it creates a separate abstraction to keep the presentation isolated from the text data. Style sheets are a common feature in most popular desktop publishing and word processing programs, including Corel Ventura, Adobe InDesign, Scribus, PageMaker, QuarkXPress, WordPerfect, and Microsoft Word, though they may be referred to using slightly different terminology. Use Individual styles are created by the user and may include a wide variety of commands that dictate how a selected portion of text is formatted: Typeface or font Boldfacing Italicizing Underlining Justification (left, right, center, justify, force justify) Space before and after paragraphs Tab stops and indentation Type size Leading Kerning Tracking Color Borders or strokes Superscript or subscript Dropcaps Letter case Strike through Outline font style Hyphenation In most programs with style sheets, there is a window or menu listing the style sheets the user has associated with the document. For example, a newspaper may have a style sheet for its story text called "Body copy" that sets the type at 10 point Nimrod with 11 point leading and justified alignment. Most programs allow users to name their own styles. Usually easy-to-remember names are used that describe what the style is used for. Common names might include "headline," "subhead" and "byline." To apply a style to a portion of text, most programs allow users to select the text with their mouse and then click on the desired style in a style panel. Some programs split style sheets into two classes: paragraph and character. Paragraph style sheets are applied to an entire paragraph while character styles are applied to only a select number of characters. Character styles are useful when a user needs to format only a small portion of a paragraph. For example, a newspaper may publish lists of current movies by starting with the name of a movie in a bold, sans serif typeface. Then, without starting a new paragraph, the review starts in the standard story text format. In this case, the designer could highlight the movie title and select the appropriate character style to apply the formatting only to the title. The rest of the paragraph can then be styled independently. More advanced layout programs allow users to format more complex paragraphs with a single paragraph