/* Center the loader */
#loader {
  position: fixed;
  left: 50%;
  top: 50%;
  z-index: 1500;
  margin: -60px 0 0 -60px;
  border-radius: 50%;
  width: 120px;
  height: 120px;
  -webkit-animation: spin 2s linear infinite;
  animation: spin 2s linear infinite;
  display: none;
}

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

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