@keyframes spinner-border {
  to {
    transform: rotate(360deg); } }

.spinner-border {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  vertical-align: top;
  border: 0.25em solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spinner-border .75s linear infinite; }

.spinner-border-sm {
  width: 1rem;
  height: 1rem;
  border-width: 0.2em; }

@keyframes spinner-grow {
  0% {
    transform: scale(0); }

  50% {
    opacity: 1; } }

.spinner-grow {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  vertical-align: text-bottom;
  background-color: currentColor;
  border-radius: 50%;
  opacity: 0;
  animation: spinner-grow .75s linear infinite; }

.spinner-grow-sm {
  width: 1rem;
  height: 1rem; }