.loader {
  display: inline-block;
  width: 80px;
  height: 80px;
}
.loader:after {
  content: ' ';
  display: block;
  width: 64px;
  height: 64px;
  margin: 8px;
  border-radius: 50%;
  border: 6px solid #22c55e;
  border-color: #22c55e transparent #22c55e transparent;
  animation: lds-dual-ring 1.2s linear infinite;
}
@keyframes lds-dual-ring {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}