Advert image croped

Hello,

On the advert page top slide the image looks like is in “cover” size, and want to change it to view the whole image like “contain”.

I’ve tried this code:

img.wpadverts-slide-img {
object-fit: contain !important;
}

but didn’t work, also disabling “crop image” in the options didn’t work.

The page I need help with: [log in to see the link]