.wrapper {
    position: relative;
    height: 100%;
    width: 100%;
  }

  #loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
  }
  
  #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;
    z-index: 1001;
    -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: #e74c3c;
    -webkit-animation: spin 3s linear infinite;
            animation: spin 3s linear infinite;
  }
  #loader:after {
    content: "";
    position: absolute;
    top: 15px;
    right: 15px;
    left: 15px;
    bottom: 15px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #f9c922;
    -webkit-animation: spin 1.5s linear infinite;
            animation: spin 1.5s linear infinite;
  }
  
  #loader-wrapper .loader-section {
    position: fixed;
    top: 0;
    width: 51%;
    height: 100%;
    background: #222;
    z-index: 1000;
    -webkit-transform: translateX(0);
        -ms-transform: translateX(0);
            transform: translateX(0);
  }
  
  #loader-wrapper .loader-section.section-left {
    left: 0;
  }
  
  #loader-wrapper .loader-section.section-right {
    right: 0;
  }

  #loader-wrapper .loader-msj {
    color: #e0e0e0;
    width: 100%;
    z-index: 2000;
    position: absolute;
    text-align: center;
    font-size: 12px;
    bottom: 25%;
  }
  
  @-webkit-keyframes spin {
    0% {
      -webkit-transform: rotate(0deg);
              transform: rotate(0deg);
    }
    100% {
      -webkit-transform: rotate(360deg);
              transform: rotate(360deg);
    }
  }
  
  @keyframes spin {
    0% {
      -webkit-transform: rotate(0deg);
              transform: rotate(0deg);
    }
    100% {
      -webkit-transform: rotate(360deg);
              transform: rotate(360deg);
    }
  }
  .loaded #loader-wrapper .loader-section.section-left {
    -webkit-transform: translateX(-100%);
        -ms-transform: translateX(-100%);
            transform: translateX(-100%);
    -webkit-transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
            transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
  }
  
  .loaded #loader-wrapper .loader-section.section-right {
    -webkit-transform: translateX(100%);
        -ms-transform: translateX(100%);
            transform: translateX(100%);
    -webkit-transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
            transition: all 0.7s 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
  }
  
  .loaded #loader {
    opacity: 0;
    -webkit-transition: all 0.3s ease-out;
            transition: all 0.3s ease-out;
  }
  
  .loaded #loader-wrapper {
    visibility: hidden;
    -webkit-transform: translateY(-100%);
        -ms-transform: translateY(-100%);
            transform: translateY(-100%);
    -webkit-transition: all 0.3s 1s ease-out;
            transition: all 0.3s 1s ease-out;
  }

  .loaded #loader-wrapper .loader-msj {
    opacity: 0;
    -webkit-transition: all 0.3s ease-out;
            transition: all 0.3s ease-out;
  }