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

1. ordered item
2. ordered item
   • unordered
   • unordered
     1. ordered item
     2. ordered item
3. ordered item
4. ordered item

Ordered –