body {
  margin:0;
  overflow:hidden;
  background: black;
}

img {
  display:none;
}

.loading {
  margin: -50px -50px;
  border:0.2em dashed white;
  position:absolute;
  width: 100px;
  height: 100px;
  border-radius: 100px;
  animation: load 5s linear infinite;
}

@keyframes load {
  0% {
    transform: translateX(50vw) translateY(50vh) rotateZ(0deg);
  }
  100% {
    transform: translateX(50vw) translateY(50vh) rotateZ(360deg);
  }
}