Blogger & Adsense Issue (Trying to Center Ad)

http://hallwriting.blogspot.com/

The ad appearing underneath the post isn't aligned properly. I've spent almost an hour and I'm just getting irritated now. I tried using a small link it still wasn't centering, but I'd like it to remain where it is located. I wasn't sure if this should be posted here or in the blogging section.

Any insight into solving this would be appreciating. It seems like I should be able to find the ad within the page code, but I don't think it's showing up.

 

Just add the following into your css stylesheet

.inline-ad {
	margin: 0px auto;
	width: 468px;
}

Code (markup):

 

Thanks a lot. You are a hero.