Submit form runs off page

I installed the short code on a page and parts of the form just run right off the side of the page. This happens regardless of what page template I apply. You can see here.

http://www.heartsofatherhood.org/submit-content/

The title and author boxes don’t end on the right side. The editor also looks a little funky. There must be a way I can give this a responsive size, no?

https://wordpress.org/plugins/frontend-uploader/