I've just added that and it doesn't seem to have helped. I also cleared the browser cache although I know sometimes there's a server-side cache that takes a while to clear. 

Let me know what you think...

Over the weekend, I got some complaints that the leaderboard ad on my site (next to the Passportdelicious logo) was not aligning and was falling down to under the logo. I do not recall making any site changes before these complaints. I have tried disabling all my plugins and I still have the same problem. Oddly, when I use Firefox, it seems to be okay. But in Chrome, I have the problem. Also, if I resize the page and then expand it again in Chrome, the ad falls into the right place. 

I have also tried deleting the adsense code (but then I get a broken "banner" gif) and replacing it with no difference. 

Are you able to take a quick look and tell me if you can determine the cause?

Image attached.

Krista