The class "media" seems to be added to the body element. I have seen this causes problems for some people using Twitter Bootstrap. The workaround is to override the bootstrap styles in your theme's style.css. Aside from the Bootstrap conflicts this class seems to be causing conflicts elsewhere for me and I can't pin down the problem.
Is it possible to stop 'media' being added to the body element or perhaps change the class name slightly to "multimedia" so it doesn't interfere with existing styles?