/* define width, and height for object-fit to work. Aspect.ratio can be 1.0 or 16 / 9 */ 

/* great for cards with image in top */
img {
width: 100%;
height: auto;
object-fit: cover; /*can be cover, contain, fill, scale-down*/
aspect-ratio: 1.0;
}

/* great for logos etc. */
img {
width: 100%;
height: auto;
object-fit: scale-down; /*can be cover, contain, fill, scale-down*/
aspect-ratio: 3 / 2;
padding: 1rem;
}