#loading-background {
  width: 100%;
  height: 100%;
  background: #fff;
  display: block;
}

.loading-indicator {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 50px;
  height: 50px;
  -webkit-box-sizing: border-box; /* Safari */
  box-sizing: border-box;
  border: 3px solid transparent;
  border-radius: 50%;
  border-left: 3px solid #21b5ea;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg);
  }

  100% {
    -webkit-transform: rotate(1turn);
    transform: rotate(1turn);
  }
}