Broken style.css

Hi guys,really big problem here i messed up style.css,i dont know what i broke but now the site is dividet into two and there is empty space in the center,that can be seen here http://rodopipress.info/news/.
Here is the style.css file http://pastebin.com/ZNTTxEbE
Any help please im trying to fix it from 10 hours