.loader {
  position: relative;
  border-radius: 50%;
  box-shadow: -5px 5px 0 12px inset #000;
  animation: rotate 5s ease-in infinite alternate;
}

@keyframes rotate {
  100% { transform: rotate(750deg)}
}
@keyframes scale {
 100% { transform: scale(0.5) translateY(5px)}
}
      
.loader {
	transition: .2s;
	width: 50px;
	height: 50px;
}