Test counters() handling against longhand rather than shorthand.
Because that's where it'll be passed
Start testing counters implementations, fix syntactic shorthand lowering for counter[s]() functions.
Release new Haskell Stylist & XML Conduit Stylist!
XML Conduit Stylist changed to abstract away Haskell Stylist's breaking datastructure changes.
Substitute in counters for any CSS textual property, not just `content`.
Will be required by Rhapsode for navigational markers.
Implement whitespace collapse, togglable via white-space: pre/normal;
Parse & prepare to handle white-space: pre;