.icon {
  width: 1em;
  height: 1em;
  fill: currentColor;
  vertical-align: -0.125em;
  display: inline-block;
  flex-shrink: 0;
}

.icon-spin {
  animation: icon-spin 1s linear infinite;
}

@keyframes icon-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}