Post Content CSS Question

I’m using this Datafeedr plugin on my blog http://www.capperspicks.com/blog/ncaa-football/handicapping-analysis-conference-realignment-2011-betting-6611/ (Example URL).

I’m using the plugin in posts. Its working fine. I need help with the .css though. Most of my articles the ad-banners (that I put in manually) are always aligned left with padding 5 and a grey border #cccccc. How do I do this with the datafeedr plugin?

Example URL of how my ads usually look in articles.

Any help appreciated. Thanks Ray