.btn-loading-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: btn-spin 0.6s linear infinite;
  vertical-align: -2px;
  margin-right: 8px;
}

@keyframes btn-spin {
  to {
    transform: rotate(360deg);
  }
}

.is-submitting {
  pointer-events: none !important;
  opacity: 0.7 !important;
  cursor: not-allowed !important;
}