increase width of footer widget

Hallo Guys, I´m rly new here. Maybe u can help me with my problem on my wordpress site. I want to increase the width of footer widget: My first foothr is the huge it map and secound footer is the Kontact-Text. Now i want to have a larger Map on my footer. Because it looks not so good at the moment with so much free space.. Thanks for ur help ;) iam not using catch theme promo. Iam using catch resposive. My Website: http://www.stuckundlehm.de/