Uhm, @jedaisoul -- I think he mean the list items side-by-side, not the lists themselves... in which case:
Though really if it's going to have more than one fixed column in multiple rows, that starts to sound like tabular data, but that's hard to say without seeing the data being marked up.
Since data should dictate markup and data+markup+device capabilities should dictate layout.
As to CSS in the markup, that's usually a bad idea. There's a reason I think STYLE as a tag should be made obsolete and as an attribute should be deprecated.