Knyle Style Sheets
KSS is a set of guidelines to help you produce an HTML styleguide tied to CSS documentation that is nice to read in plain text, yet structured enough to be automatically extracted and processed by a machine. It is designed with CSS preprocessors (such as SCSS or LESS) in mind, and flexible enough to accommodate a multitude of CSS frameworks (such as YUI, Blueprint or 960).
Source: warpspire.com