.operation-wait::before {
  content: "";
  display: inline-block;
  width: 1rem;
  height: 1rem;
  margin-right: 0.4rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  vertical-align: middle;
  animation: operation-wait-spin 0.8s linear infinite;
}
@keyframes operation-wait-spin {
  to { transform: rotate(360deg); }
}
@media (prefers-reduced-motion: reduce) {
  .operation-wait::before { animation: none; }
}