This is a tracking page for a comprehensive PFWG review of CSS. Most of CSS active development is in Level 3, so that is what applies unless otherwise indicated. The CSS Working Group maintains a CSS Current Work page that lists most of the modules with status and priority. Additional modules were found in the CSS Editors' Drafts repository, but lack accurate information on status and priority. Some modules were listed in the current work page but no draft could be found. Links to drafts in the table below reference the editors' draft when one could be found, otherwise the TR draft.

The set of documents below is arranged in a suggested priority order, which combines document maturity, CSS priority, and a categorization of the nature of the document. Categories used, in priority order, are:

1. flow: flow control of objects
2. layout: overall layout control of page
3. display: general display functions
4. aural: auditory control
5. text: direct control of text presentation
6. effects: altering appearance of (usually graphical) objects
7. generated: generated content
8. syntax: lexical rules
9. model: processing rules
10. profile: subsets for particular uses