Property Names and Value Identifiers

I've notice a lot of inconsistency in the conventions used for property
and property value identifiers names in the CSS 4.0 draft.

For example, we have the following conventions used for compound identifiers:

1. xy, e.g., linebefore
2. x-y, e.g., font-family
3. x.y, e.g., insert.before

Could a single convention be chosen and followed consistently please?

Glenn Adams