Mobile menu height

Hi!

I am using the Bridge theme as well as Max Mega Menu to create my Nav bar. On mobile, I’ve been trying to customize and over ride some theme styles, but I haven’t been able to get the same white space all around the mobile nav for some reason – the bottom space is much bigger and looks weird. Any ideas how to fix this? Thank you!

The page I need help with: [log in to see the link]