#loader-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background: #fafafa;
}

#loader {
  display: block;
  position: relative;
  left: 50%;
  top: 50%;
  width: 150px;
  height: 150px;
  margin: -75px 0 0 -75px;
  border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: #3498db;
  -webkit-animation: spin 2s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
  animation: spin 2s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */
  z-index: 1001;
}

  #loader:before {
    content: "";
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #e74c3c;
    -webkit-animation: spin 3s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
    animation: spin 3s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */
  }

  #loader:after {
    content: "";
    position: absolute;
    top: 15px;
    left: 15px;
    right: 15px;
    bottom: 15px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #f9c922;
    -webkit-animation: spin 1.5s linear infinite; /* Chrome, Opera 15+, Safari 5+ */
    animation: spin 1.5s linear infinite; /* Chrome, Firefox 16+, IE 10+, Opera */
  }

@-webkit-keyframes spin {
  0% {
    -webkit-transform: rotate(0deg); /* Chrome, Opera 15+, Safari 3.1+ */
    -ms-transform: rotate(0deg); /* IE 9 */
    transform: rotate(0deg); /* Firefox 16+, IE 10+, Opera */
  }

  100% {
    -webkit-transform: rotate(360deg); /* Chrome, Opera 15+, Safari 3.1+ */
    -ms-transform: rotate(360deg); /* IE 9 */
    transform: rotate(360deg); /* Firefox 16+, IE 10+, Opera */
  }
}

@keyframes spin {
  0% {
    -webkit-transform: rotate(0deg); /* Chrome, Opera 15+, Safari 3.1+ */
    -ms-transform: rotate(0deg); /* IE 9 */
    transform: rotate(0deg); /* Firefox 16+, IE 10+, Opera */
  }

  100% {
    -webkit-transform: rotate(360deg); /* Chrome, Opera 15+, Safari 3.1+ */
    -ms-transform: rotate(360deg); /* IE 9 */
    transform: rotate(360deg); /* Firefox 16+, IE 10+, Opera */
  }
}