Center Crop Image

.frame {
  position: relative; 
  min-height: XXX;
  min-height: XXX;
  overflow: hidden;
}
.frame img {
  position: absolute;
  /*
  left: -100%;
  right: -100%;
  top: -100%;
  bottom: -100%;
  margin: auto;
  width: auto;
  height: auto;
  */
  top: 50%;
  left: 50%;
  width: 100%;
  height: auto;
  min-width: 100%;
  min-height: 100%;
  -webkit-transform: translate(-50%,-50%);
  -ms-transform: translate(-50%,-50%);
  transform: translate(-50%, -50%);
  -o-object-fit: cover;
  object-fit: cover;
  object-position: center;
}