OK, this should be a simple question if you know the answer: I'm trying to "hack" the Twenty Eleven Wordpress theme and I'm wondering why a simple img I inserted before the "header-img" doesn't behave like the main header image.
Who or what is doing possible that responsive or fluid layout? Javascript? CSS? Where!!!
Why the header image scales down when you manually resize the browser window to be 400px wide?
Where should I hook or hardcode my "improvements" in this theme? Not only inserting my website's logotype, but also taking it into account when the user is browsing from a mobile device, etc. (ie, scaling, resizing, repositioning, etc.). Where are that functions located?