- (web design, usually derogatory) The practice of authoring stylesheets with redundant and semantically unhelpful classes.
- 2006, Paul Haine, HTML Mastery: Semantics, Standards, and Styling, page 175:
- Classitis can be avoided through a better understanding of CSS selectors.
- 2011, Antony Kennedy, Inayaili de León, Pro CSS for High Traffic Websites (page 102)
- Frameworks tend to suffer from divitis and classitis.