object-fit: ;

Values:
fill
contain
cover 
none 
scale-down

Specify how an image or video should fit into it's container.

object-position: ;

object-position: 50% 50%;
object-position: right top;
object-position: left bottom;

Specify how an image should be positioned inside it's container.

mask-image: url();
mask-repeat: no-repeat;

Use a transparent png image (mask image) to use as a mask layer over another image.