counter-increment: value;
object.style.counterIncrement = "value";
<'counter-increment'> = [ <counter-name> <integer>? ]+ | none
<counter-name> = <custom-ident>
<custom-ident>
Specifies any valid identifier that is not misinterpreted as a keyword.
<integer>
Specifies one or more decimal digits (0-9).
none
Does not alter the value of any counters.