.loader-center {
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-right: -50%;
  transform: translate(-50%, -50%)
}

.loader {
  /* border: 16px solid #f3f3f3; Light grey */
  /* border-top: 16px solid #3498db; Blue */
  border: 16px solid #f3f3f3;
  border-top: 16px solid #EE4A46;
  border-radius: 50%;
  width: 120px;
  height: 120px;
  animation: spin 2s linear infinite;
}

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