.preloader {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
    background: #ffff;
    }
    .loader_spin {
      display: inline-block;
      position: relative;
      width: 80px;
      height: 80px;
    }
    .loader_spin:after {
      content: ' ';
      display: block;
      border-radius: 50%;
      width: 0;
      height: 0;
      margin: 8px;
      box-sizing: border-box;
      border: 32px solid #5653fe;
      border-color: #5653fe transparent #5653fe transparent;
      animation: loader_spin 0.8s infinite;
    }
    @keyframes loader_spin{
      0% {
        transform: rotate(0);
        animation-timing-function: cubic-bezier(0.55, 0.055, 0.675, 0.19);
      }
      50% {
        transform: rotate(900deg);
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
      }
      100% {
        transform: rotate(1800deg);
      }
    }