Need TRANSPARENT space between "content" and footer

I have been trying to figure out how to add a 10 px TRANSPARENT gap between the footer & the bottom part of the contents/sidebars.

I've tried searching for a fix & haven't found one. any helpful ideas?

This is the site: http://lawn-greetings.com/wordpress/

This is what I'm trying to recreate: http://www.lawn-greetings.com/

I also need to figure out a way to add that graphic in there... one thing at a time.