#preloader {
    display: flex;
    height: 100vh;
    width: 100%;
    justify-content: center;
    align-items: center;
    background:  #0000008f;
    margin: 0;
    padding: 0;    
    z-index: 999999;
    position: fixed;
}

.lds-dual-ring {
    display: inline-block;
    width: 164px;
    height: 164px;
  }
  .lds-dual-ring:after {
    content: " ";
    display: block;
    width: 146px;
    height: 146px;
    margin: 1px;
    border-radius: 50%;
    border: 10px solid #2e3092;
    border-color: #2e3092 transparent #2e3092 transparent;
    animation: lds-dual-ring 0.8s linear infinite;
  }
  @keyframes lds-dual-ring {
    0% {
      transform: rotate(0deg);
    }
    100% {
      transform: rotate(360deg);
    }
  }