.loader {
  border: 16px solid #f3f3f3; /* Light grey */
  border-top: 16px solid var(--primary-color); /* Blue */
  border-radius: 50%;
  width: 120px;
  height: 120px;
  animation: spin 2s linear infinite;
  position:relative;
  left:50%;
  margin: 0 0 0 -60px;
}

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