#loading {
  display: none;
  width: 100%;
  height: 100%;
  position: absolute;
  top:0;
  left:0;
}

@keyframes spinner {
  from {transform: rotate(0deg); }
  to {transform: rotate(360deg);}
}

#loading .spinner {
  box-sizing: border-box;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 64px;
  height: 64px;
  margin-top: -32px;
  margin-left: -32px;
  border-radius: 50%;
  border: 8px solid transparent;
  border-top-color: #f19022;
  border-bottom-color: #f19022;
  animation: spinner .8s ease infinite;
}