Adjust Product Category Image Size

Hello,
On this page: https://masterantioxidant.ca/test-cat/ I would like the image to look the full bottle size seen on the purchase page: https://masterantioxidant.ca/purchase/

The images on the purchase page are using the following CSS to resize the images, but I can't seem to translate it to get it to function for the image on the test-cat page:

.mpc-product__thumb-wrap {
height:325px!important;
}
.mpc-product__thumb {
background-size:contain!important;
}

Thanks in advance,
Casper