f7723559_CSS_HTML_XHTML_Reference_Book__Description_and_notes
[Property/Values] list-style-type either disc, circle, square, decimal, lower-roman, upper-roman, lower-alpha, upper-alpha, none, or inherit [Description and notes] 
for setting a list's marker initial value: disc; may only be applied to list elements; not used if list-style-type is valid; inherited
CSS HTML XHTML Reference Book
Description and notes