body {
  background-image: url(images/eotbg.png);
  background-size:25%;
  animation:scroll 80s linear infinite;
  overflow: hidden;
}
.save {
  cursor: pointer;
}
.restore {
  cursor: pointer;
}
.door {
  cursor: pointer;
}

.door:hover {
  opacity: 0;
}
@keyframes scroll {
  0% {
    background-position:80vw -80vh;
  }
  100% {
    background-position: 0vw 80vh;
  }
}