For what T posted yes the big gray area is included in the actual webpage. Mine looks like this.
Its nothing new, someone made a thread about it awhile ago. Usually its off screen and you have a scroll bar on the bottom of the browser. Its an issue caused by how they placed the ads. Its not specific to any browser I can easily get it on FF, chrome, IE, and my android phone simply using default settings for those browsers. If you run an ad blocker then yes the page will appear normally, that however is not a fix to the problem. Kinda like how minimizing the reference section doesn't change that it takes up too much space. Many of the guests looking at the site counldn't be bothered to do these things.