#preloader {
  display:none;
  position: fixed;
  left: 50%;
  top: 50%;
  margin-top: -30px;
  margin-left: -30px;
  opacity: .8;
  background-color: rgba(0,0,0,.6);
  border-radius: 50%;
  width: 60px;
  height: 60px;
  z-index: 3000;
}

#preloader-inner {
  position: absolute;
  left: 5px;
  top: 5px;
  border: 3px solid transparent;
  border-radius: 50%;
  border-top: 3px solid #fff;
  border-bottom: 3px solid #fff;
  width: 50px;
  height: 50px;
  -webkit-animation: spin 1s linear infinite;
  animation: spin 1s linear infinite;
}

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

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