Adding Horizontal Scrollbar

Can anyone tell me how to get a scrollbar added to the following url: http://touch2use.com/gaming-consoles/?goldencanasin=B003O6FV8S&goldencancid=4295

As you can see, the product description goes beyond its second and is covered by the right widget. I have tried adding the overflow:auto; to different lines in my styles.css file, but nothing is working. Can anyone help?