Issue with the "Submit a new topic" page

[Jeffery Davis]

Hello, 

I've been messing with the forums a lot and testing things recently. This issue started happening tonight and I am not sure of the cause. While submitting a new topic, the buttons will display much smaller than they should and do not take up the entire space. Bare with me, it's hard to explain. I've attached an image to the post to help clear up any confusion.

As you can see in the attached image, the contents of the page only displays on the furthermost left side. I believe it is supposed to fill the entire space. (Correct me if I am wrong)

If the selected category, however, contains posts already in it, this does not happen. Rather, it fills the whole space.

Any help is appreciated. Thanks in advance.