Defining Custom Counter Styles : @counter-style rule

Allows definition of a custom counter style. The general form of an @counter-style rule is:

@counter-style <counter-style-name> { <declaration-list> }

Counter style names are case-sensitive, However, the names of counter styles that are predefined in CSS Counter Styles Level 3 are matched case insensitively. A counter style name cannot match “none”, and “decimal” and “disc” cannot be defined as counter style names.

The following descriptors are allowed in the declaration list:

[12] Not implemented by AH Formatter.