Identifies the type of prefix character that precedes each list item
| Value | Meaning |
|---|---|
| arabic | Ordered list. List item prefix is arabic numeral |
| bullet | Unordered or bulleted list. Prefix character is a bullet or other symbol. |
| dash | Unordered list. Prefix character is a dash. |
| lower_alpha | Ordered list. Prefix character is a lowercase alphabetical character. |
| lower_roman | Ordered list. Prefix character is a lowercase roman numeral. |
| unlabelled | Unordered list. There is no prefix character. |
| upper_alpha | Ordered list. Prefix character is an uppercase alphabetical character. |
| upper_roman | Ordered list. Prefix character is an uppercase roman numeral. |
| Restriction: This attribute must be specified if the element is used. | |