Not all of your elements need formatting, i.e. the ones that just hold child elements, usually don't need any (unless you want to play with spacing, boxes, background etc., but that's more advanced stuff not covered here.). For starters you roughly may have:
For each of these you need to learn some more and some different EDD formatting. For each group you can also try to figure out what formatting attributes they have in common (or by default)
Since as we explained before EDD rules are based by default on a paragraph tag called "Body" you should think about these questions:
Well, this step wasn't really important, but a tiny little bit of planning will not hurt. We are ready to start now!