How/Where to reduce width of columns

Hi there,

Anyone know how and where I can make changes to reduce the width of the packages columns?

I currently have 5 packages and the 5th one is falling underneath…

Site is not currently viewable (still in development) so no point in adding link I don’t think.

Also I managed to find the theme that is displayed in the screen shot…
theme= smooth

Thanks in advance for any help 🙂

http://wordpress.org/extend/plugins/pricing-table/