I recently had the image on my Twenty Eleven header theme redone so I could make room for a leaderboard ad in my header. However, this has caused all manner of headaches. First, the ad often shrinks, even though I've added CSS so that it will show at 100 percent its size. But the biggest headache is that IE shows a massive white space between the menu and header.
Any idea what I can do to fix these problems? My site is http://www.weddingdecoratorblog.com.