This is a list of CSS themes and frameworks that do not require you to add their classes to your HTML elements. It means you can quickly style a plain HTML page. This is useful, for example, in prototyping.
This is a list of classless CSS themes and frameworks. "Classless" means a style sheet does not define special classes you must add to your HTML elements to style these elements. As a result, you can style any plain-HTML page just by linking to the style sheet. This is useful, for example, in prototyping.