/* css/infinity-scroll.css */
.loading-spinner {
  text-align: center;
  margin: 20px 0;
}
.loading-spinner::after {
  content: '';
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(0,0,0,.1);
  border-top-color: #333;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}