Hi tuanphan,
Thank you for your reply!
This does change the height of the image, however the overall project block remains the same. When I hover over the project, half of it is the image and the other half is white.
I have attached a screenshot of my portfolio project page so you can have a better idea of what is happening. As you can see, the adidas project is shaded because I'm hovering over it, and I reduced the padding at the bottom with the code you provided, but now the whole block is split in 2.
I was wondering if there is a way to decrease that aspect ratio to a custom ratio so I can make more projects visible at once.
Hope this makes sense.