.loaderback {
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    width: 0;
    height: 100vh;
    transition: width 0s 1.4s ease;
  }
  
  
  .loaderback .loaderback__tile {
    position: absolute;
    left: 0;
    width: 0;
    height: 20%;
    background-color: #fff;
    transition: width .7s ease;
  }
  .loaderback .loaderback__tile:nth-child(0) {
    top: calc(-1 * 20%);
    transition-delay: -0.2s;
  }
  .loaderback .loaderback__tile:nth-child(1) {
    top: calc(0 * 20%);
    transition-delay: 0s;
  }
  .loaderback .loaderback__tile:nth-child(2) {
    top: calc(1 * 20%);
    transition-delay: 0.2s;
  }
  .loaderback .loaderback__tile:nth-child(3) {
    top: calc(2 * 20%);
    transition-delay: 0.4s;
  }
  .loaderback .loaderback__tile:nth-child(4) {
    top: calc(3 * 20%);
    transition-delay: 0.6s;
  }
  .loaderback .loaderback__tile:nth-child(5) {
    top: calc(4 * 20%);
    transition-delay: 0.8s;
  }
  .loaderback--actives {
    width: 100%;
    transition-delay: 0s;
  }
  .loaderback--actives .loader__icon {
    opacity: 1;
    transition: opacity .5s 1.4s ease;
  }
  .loaderback--actives .loaderback__tile {
    width: 100%;
  }
  .loaderback--actives .loaderback__tile:nth-child(0) {
    transition-delay: -0.2s;
  }
  .loaderback--actives .loaderback__tile:nth-child(1) {
    transition-delay: 0s;
  }
  .loaderback--actives .loaderback__tile:nth-child(2) {
    transition-delay: 0.2s;
  }
  .loaderback--actives .loaderback__tile:nth-child(3) {
    transition-delay: 0.4s;
  }
  .loaderback--actives .loaderback__tile:nth-child(4) {
    transition-delay: 0.6s;
  }
  .loaderback--actives .loaderback__tile:nth-child(5) {
    transition-delay: 0.8s;
  }