The display property does not have a value that will cause an element to display as a list. However, display: list-item; does cause an element to generate a list item. Every list item has a marker, which is the bullet, number, or other mark that identifies the list item. In CSS 2, the formatting of the marker is specified using the the list-style-type, list-style-image, list-style-position, and list-style properties. CSS 3 adds the ::marker pseudo-element so that the list item marker can be styled with the full range of CSS properties and values. The list-style-type and list-style-image properties set the default contents of the ::marker pseudo-element.