Yes, you may not change the ad code but you can choose different sizes when getting the code, you have to do it with that
Yea its against Googles guidelines but you can change it in your account to Google specifications. It would be cool though if you could do something like that to fit anything.
Hi again. I had another question. I uploaded an ad and it came like this: I can't seem to find the "Ads by google" on it. I just used the tool that was provided with adsense to make the code. Is this allowed?