Caption bar & nav bar hide parts of images

Hello, first of all, thanks a lot for this useful plugin.*
I only have one problem with it, as mentionned in the title.
Here’s an example on one of my projects : https://www.maxence-beranger.com/graphisme-multimedia/evenement-info-com/

The upper and lower black bars override tall images, so it isn’t possible to see the complete picture. I tried to tweak things a bit with CSS but can’t figure any solution for now. I’d appreciate some help !

Thanks