.loader {
  display: inline-block;
  border: 5px solid #dddddd; /* Light grey */
  border-top: 5px solid #7a29e4; /* Blue */
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: spin 1s linear infinite;
  margin: 10px auto;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}