Only one list item used

No need to apply a list when you've got just one list item. A list implies a series of items. If you're trying to display the bullet character, use the character entity instead: • or &8226;. 

Using Multiple Line-breaks

If you're using multiple line-breaks, or <br> elements, to fake a list, why not use an actual list? If you don't want the leading character—whether a bullet or number—you can easily get rid of them by setting list-style-type CSS property for the <li> element to none.