.loader {
    border: 16px solid #f3f3f3;
    border-radius: 50%;
    border-top: 16px solid #3498db;
    width: 80px;
    height: 80px;
    -webkit-animation: spin 2s linear infinite; /* Safari */
    animation: spin 2s linear infinite;
  }
  
  /* Safari */
  @-webkit-keyframes spin {
    0% { -webkit-transform: rotate(0deg); }
    100% { -webkit-transform: rotate(360deg); }
  }
  
  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }

  .loaderBox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    height: 100%;
    z-index: 9999999;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.7);
    visibility: hidden;
    opacity: 0;
    transition: all 0.6s ease-in-out;
}

.showLoaderBox {
    visibility: visible;
    opacity: 1;
}