I'm using the Tap Widget from jQuery, and im trying to mess around with the design. But my code doesnt seem to do anything, I just simply can't figure out how to adress the right locations, even after inspecting them with Grome. 

So for example, I want to change the border from the Tap-panel on this page:  https://www.brandlangers.com/portfolio-grit2#tabs-1

This is how far i got, but it doesn't seem to work.
I'm placing this in the general custem CSS page on squarespace, should be allright. 

Hope any one can help me figuring this CSS out.

All the best,

Gido Gil