testimonials going right across page

Firstly, thank you for the nice plugin – its exactly what we were looking for.

We have having a slight issue, we are using the short code to place a testimonials onto a page, but it is spreading the full width of the page – meaning that the written text and the name of the testimonial supplier is very far apart.

We would like to contain the testimonial’s so a certain area, is this possible?

http://wordpress.org/extend/plugins/testimonials-widget/