Lists are used to make a set of short and equally relevant pieces of text content easy to read and see as a group.
Use unordered lists for items in which the order does not explicitly matter.
Use ordered lists for a list of items in which the order does explicitly matter.
Use unstyled lists to remove the default list style and left margin on list items for immediate children only. Since this only applies to immediate children, you will need to add the class for any nested lists as well.
Use inline lists to place all list items on a single line with light padding between items.