I've noticed quite a few people using dreamwidth layouts either imported from old livejournal code or newer insanejournal code. And one of the results of this is that the CSS that customizes the controlstrip navigation at the top of the page is either broken or non-existent. You can always disable the controlstrip to some degree using your account settings, and completely get rid of it with CSS, but I don't like to make that decision for the user. I personally use the controlstrip a lot when browsing dreamwidth!
So, I decided to whip up some basic controlstrip only CSS. It's at least slightly responsive (you can see the layout at kleptocratic for an example of how the code scales) and designed to be simple to customize to match a variety of layouts and aesthetics.( two variations on a single theme )
The default Dreamwidth navigation module has a lot of stuff in it that might not be relevant to how you use the site and your journal. While it is pretty easy to remove individual items using CSS, you can also customize your navigation menu using the S2 system, which allows you to add new links or change the order of the existing ones.( code and breakdown behind the cut )