Form UI, controlling the layout of fields

I've got a form where customers can choose an item, and it several options. But the options etc span more than one row. They don't fit on a single row, so it will have to span two rows. The problem is I can't figure out how to make it look good. I can't control the line break, or whether or not the second row is left or right justified, so the fields come out jumbled. 

How can I better control this so I get a nice layout?

You can insert the below CSS to Custom CSS field:

li#id_231 {

    position: relative;

    left: 72px;

}

li#id_233 {

    position: relative;

    left: 50px;

}

That will make fields align like this:

Let us know how that worked for you.

Thank you!