.loader {
  border: 12px solid #f3f3f3;
  border-radius: 50%;
  border-top: 12px solid blue;
  border-bottom: 12px solid blue;
  width: 120px;
  height: 120px;
  -webkit-animation: spin 2s linear infinite;
  animation: spin 2s linear infinite;
  position: fixed;
  left: 47%;
  top: 47%;
  z-index: 999;
}

.loading {
  background: rgba(255,255,255,0.5);
  width: 100%;
  height: 100%;
  position: fixed;
  z-index: 99999;
  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); }
}