.loader {
  position: absolute;
  width: 20px;
  height: 20px;
}

.loader:after {
  content: " ";
  display: block;
  width: 14px;
  height: 14px;
  margin: 0;
  border-radius: 50%;
  border: 3px solid transparent;
  border-color: var(--ifm-color-white) transparent var(--ifm-color-white)
    transparent;
  animation: loader 1.2s linear infinite;
}

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