#loader {
    display: none;
    width: 80px;
    height: 80px;
}
#loader:after {
    content: " ";
    display: block;
    width: 64px;
    height: 64px;
    margin: 8px;
    border-radius: 50%;
    border: 6px solid rgb(0, 0, 0);
    border-color: rgb(0, 0, 0) transparent rgb(0, 0, 0) transparent;
    animation: loader 1.2s linear infinite;
}

.loader {
  display: block;
  width: 80px;
  height: 80px;
}
.loader:after{
  content: " ";
  display: block;
  width: 64px;
  height: 64px;
  margin: 8px;
  border-radius: 50%;
  border: 6px solid rgb(0, 0, 0);
  border-color: rgb(0, 0, 0) transparent rgb(0, 0, 0) transparent;
  animation: loader 1.2s linear infinite;
}

@keyframes loader {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
}