#preloader{
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 99999;
    width: 100%;
    height: 100%;
    background-color: whitesmoke;
    opacity: 0.8;
  }
  #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: #9370DB;
      -webkit-animation: spin 2s linear infinite;
      animation: spin 2s linear infinite;
  }
  #loader:before {
      content: "";
      position: absolute;
      top: 5px;
      left: 5px;
      right: 5px;
      bottom: 5px;
      border-radius: 50%;
      border: 3px solid transparent;
      border-top-color: #BA55D3;
      -webkit-animation: spin 3s linear infinite;
      animation: spin 3s linear infinite;
  }
  #loader:after {
      content: "";
      position: absolute;
      top: 15px;
      left: 15px;
      right: 15px;
      bottom: 15px;
      border-radius: 50%;
      border: 3px solid transparent;
      border-top-color: #FF00FF;
      -webkit-animation: spin 1.5s linear infinite;
      animation: spin 1.5s linear infinite;
  }
  @-webkit-keyframes spin {
      0%   {
          -webkit-transform: rotate(0deg);
          -ms-transform: rotate(0deg);
          transform: rotate(0deg);
      }
      100% {
          -webkit-transform: rotate(360deg);
          -ms-transform: rotate(360deg);
          transform: rotate(360deg);
      }
  }
  @keyframes spin {
      0%   {
          -webkit-transform: rotate(0deg);
          -ms-transform: rotate(0deg);
          transform: rotate(0deg);
      }
      100% {
          -webkit-transform: rotate(360deg);
          -ms-transform: rotate(360deg);
          transform: rotate(360deg);
      }
  }