I am building a new site, and I started using the Twentytwelve theme, it seemed to match my needs.
However, it seems that this theme has some problems with the wrapper.
I want a rather advanced background image for the wrapper, but this seems impossible to accomplish in Twentytwelve. I am fairly skilled in CSS but can't seem to get a background image in place, so my question is:
Is there a better theme for this kind of layout (just made a quick mockup)