[Theme: Magazine Basic] I want to customize my comments background

Hello
On my site http://www.quinncouture.com the background on my “comment” section is gray, and I want it to be black to match my posts background. Also On the front page where my post are, the “read more” button has a grey background too that I want to turn pink and I wanted to move it to the right of my post on the front page. You will understand what Im talking about when you visit the site and click on the latest article. Help would be greatly appreciated.

http://wordpress.org/extend/themes/magazine-basic/