2.1.11 [CSS-Level2-2009] Section 4.3.5, Counters

V0190:

The specification states:

 Counters are denoted by case-sensitive identifiers (see the 'counter-increment' and 
 'counter-reset' properties). To refer to the value of a counter, the notation 
 'counter(<identifier>)' or 'counter(<identifier>, <'list-style-type'>)', with 
 optional white space separating the tokens, is used. The default style is 
 'decimal'.

Quirks Mode and IE7 Mode (All Versions)

The counters property is not supported.