.container {
  width: 100%;
  height: 100%;
  position: absolute;
  margin:auto;
  top:0;
  bottom:0;
  left:0;
  right:0;
  background-color: #fcfcfc;
}

.container > img {
  size: 50%;
  max-width: 100%;
  max-height: 100%;
  position: absolute;
  margin:auto;
  top:0;
  bottom:0;
  left:0;
  right:0;
  object-fit: cover;
}