Reply To: Black bars on edges of Featured Category Images when zooming in/out on webpage

There is one featured product category image there now. Sorry about that.

the image is 1000 x 1000 px. What size does it need to be?
Can I turn off the hover zoom function, it is not needed. I just want the image to resize responsively.

I have no plugins linked to the featured categories section, it it purely done through the Basel theme