I am currently working on replicating the interactive player footer design used by rdio (). When you click on the footer, a panel elegantly slides up to reveal additional content. Another example of this functionality can be seen on the website teehan lax; their top dropdown menu , although it does not work properly in Firefox.
I found a code snippet that could potentially help with this project: . However, it does not offer the same clean functionality as rdio's or teehan lax's implementation.
Any thoughts on what libraries they might be using for this feature?