styles css in 2012 theme

What is and how do i remove the double bar below the edit text and above the footer area in the 2012 theme, Snip Shot

Also what is and how do i remove the border around my content area? Snip shot includes the bottom but if you go to http://dirtest.mytithi.com you can see what i am talking about. I tried to find it using Chrome inspect element to no avail!

Thanks!