I apologize if this has been posted somewhere already, I could not find an answer.
I am trying to create an ordered list like this:
I.
A.
B.
i.
i.
II.
A.
i.

My problem is that I cannot figure out how to get my "i" back to "A". Does that make any sense? We are using "HTML5 &CSS3" as our textbook and I can't find anything that tells me how to do this. I've done a lot of Google searches and cannot find an answer either. Any help would be much appreciated.

Thanks, Jessica