http://omniti.com/seeds/maintainable-stylesheets-can-css-be-object-oriented

Which reminds me: the numbers don’t have to be decimals. They can be anything that list-style-type can be. Namely:

disc (• • •)
circle (? ? ?)
square (? ? ?)
decimal (1 2 3)
decimal-leading-zero (01, 02, 03)
lower-roman (i ii iii)
upper-roman (I II III)
lower-greek (? ? ?)
lower-latin (a b c)
upper-latin (A B C)
armenian (? ? ?)
georgian (? ? ?)
lower-alpha (a b c)
upper-alpha (A B C)

http://css-tricks.com/15358-numbering-in-style/