[cellarius]

Originally Posted by SledgeHead

Awesome! How would I go about adding a border and changing the background color? Also, I noticed the collapse button isn't centered vertically, but instead it touches the bottom. How do I adjust this?

Coloring or bordering the box has nothing to do with this article's topic - you do it using .css, just as you would do for any other box. Go grab some basic .css tutorial on how to do this, explaining this here would lead too far, really.
To change positioning, you need to add an additional class as described in the postings right before yours to override the settings in collapse class.