.bi-fade-in {
  animation: fade-in .3s; }

@keyframes fade-in {
  from {
    opacity: .5; }
  to {
    opacity: 1; } }

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

@keyframes fade-in2 {
  from {
    opacity: 0; }
  to {
    opacity: 1; } }