Nested and mixed lists are an interesting beast. It’s a corner case to make sure that Lists within lists do not break the ordered list numbering order Your list styles go deep enough. Ordered – Unordered – Ordered ordered item ordered item unordered unordered ordered item ordered item ordered item ordered item Ordered – Unordered – Unordered ordered item ordered item unordered unordered unordered item unordered item ordered item ordered item Unordered – Ordered – Unordered unordered item unordered item ordered ordered unordered item unordered item unordered item unordered item Unordered – Unordered – Ordered unordered item unordered item unordered unordered ordered item ordered item unordered item unordered item