Widen the text box in Escapade

I like the theme, but for the life of me, I don’t know how to widen the field for text. If you look at the page, I hope that you’ll see what I mean, because the text is basically half the width of the page, with white space beside it.
I’m sure it’s kinda simple, and probably straightforward, but for the life of me, don’t know how to widen it.
Help?!?

The page I need help with: [log in to see the link]