Advanced Layer Slider shrinks too much when downsized

Hello,

I’m not sure what I’m doing wrong here since I made a copy of the already created example. I just switched up the elements but when I downsize the slider height shrinks way more than it does in the example. Before I change the elements it shrinks how its supposed to but once I change things up it goes haywire. Any help would be great. Thanks in advance.

http://marcv.byethost7.com/