Swipe Gesture Reveal Example Card Overlay

Hey guys! I am currently playing with the https://fuseopen.com/examples/swipe-gesture-reveal/index.html example and I have encountered a little problem.

As soon as I increase the Width on the “bottomPanel” to lets say 90% the next card gets covered by the current card just not the previous card. It is always on top of the current one. I tried to implement different solutions with the ZOffset property but nothing seems to work. Any suggestions on how to hide both previous and next card and overlap the current one?