Predefined Counter Styles describes numbering systems used by various cultures around the world and can be used as a reference for those wishing to create their own user-defined counter styles for CSS.
The document provides support for people using the CSS Counter Styles Level 3, which has just moved to Last Call. It will be published, after review, as a WG Note. It will be updated on an ongoing basis as needs arise.
A set of tests are also currently being developed, along with results to show built-in support and support via counter-styles definitions for the counter-styles defined here.