.picture {
  height: 500px;
  background-image: url('https://images.pexels.com/photos/577585/pexels-photo-577585.jpeg?cs=srgb&dl=pexels-kevin-ku-92347-577585.jpg&fm=jpg');
  background-repeat: no-repeat;
  background-size: 100%;
  background-position: 50% 50%;
}