Is there a built in option or an easy way to customize the Yt Mega Menu such that the "pull down" items actually slide up?

I am trying to recreate something like the sticky menu at the bottom of this page ... www.mspu.us ... where the sub-menus actually slide up instead of down. I expect I can probably override the CSS to make it work, I just thought I would ask before tearing into the code.

Thanks.

Dear Jeff Chastain,

if you want to customize the mega menu module, please submit your ticket on our ticket system.

We will answer you as soon as possible.

Thanks

Hope to help you