responsive images

Hi,

I’ve used the plug-in in this website to create a grid in the homepage (http://www.luigidigiammarino.com/) and the images behave correctly when I shrink the page (they stack one below each other which is perfect); the only thing I’m trying to do is to make them responsive 100% (the image gets cut rather than smaller).

I probably messed up with the width and height but I’m really going crazy to solve this problem.

I’ll be so thankful if someone could help me.

https://ww.wp.xz.cn/plugins/image-caption-hover/