@keyframes qs_loader {
    0%, 10%, 100% {
      width: 80px;
      height: 80px;
    }
    65% {
      width: 150px;
      height: 150px;
    }
  }
  
  .qs-loader-style{
    position: fixed;
    width: 100%;
    height: 100vh;
    background: aquamarine;
    left: 0;
    top: 0;
    z-index: 999999;
  }
  .qs-preloader {
   
    position: fixed;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    z-index: 9999999;
    transform: translate(-50%, -50%) rotate(45deg) translate3d(0, 0, 0);
    animation: qs_loader 1.2s infinite ease-in-out;
  }
  .qs-preloader span {
    position: absolute;
    display: block;
    width: 40px;
    height: 40px;
    background-color: #ee4040;
    animation: qs_loaderBlock 1.2s infinite ease-in-out both;
  }
  .qs-preloader span:nth-child(1) {
    top: 0;
    left: 0;
  }
  .qs-preloader span:nth-child(2) {
    top: 0;
    right: 0;
    animation: qs_loaderBlockInverse 1.2s infinite ease-in-out both;
  }
  .qs-preloader span:nth-child(3) {
    bottom: 0;
    left: 0;
    animation: qs_loaderBlockInverse 1.2s infinite ease-in-out both;
  }
  .qs-preloader span:nth-child(4) {
    bottom: 0;
    right: 0;
  }