#preloader {
  background-color: #f6f6f6;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
}

#preloader.background_image {
  background-image: url(https://placehold.it/1920x1080);
  background-position: center center;
  background-size: cover;
}

#preloader .black-overlay {
  background-color: #000;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.6;
}

#preloader .white-overlay {
  background-color: #fff;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.6;
}

#preloader .spinner-animation {
  -webkit-animation: pace-3d-spinner linear infinite 2s;
  -moz-animation: pace-3d-spinner linear infinite 2s;
  -ms-animation: pace-3d-spinner linear infinite 2s;
  -o-animation: pace-3d-spinner linear infinite 2s;
  animation: pace-3d-spinner linear infinite 2s;

  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  -o-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

@-webkit-keyframes pace-3d-spinner {
  from {
    -webkit-transform: rotateY(0deg);
  }
  to {
    -webkit-transform: rotateY(360deg);
  }
}

@-moz-keyframes pace-3d-spinner {
  from {
    -moz-transform: rotateY(0deg);
  }
  to {
    -moz-transform: rotateY(360deg);
  }
}

@-ms-keyframes pace-3d-spinner {
  from {
    -ms-transform: rotateY(0deg);
  }
  to {
    -ms-transform: rotateY(360deg);
  }
}

@-o-keyframes pace-3d-spinner {
  from {
    -o-transform: rotateY(0deg);
  }
  to {
    -o-transform: rotateY(360deg);
  }
}

@keyframes pace-3d-spinner {
  from {
    transform: rotateY(0deg);
  }
  to {
    transform: rotateY(360deg);
  }
}