// borrowed from https://stackoverflow.com/questions/48228724/centered-modal-load-spinner-bootstrap-4

.bd-example-modal-lg .modal-dialog{
    display: table;
    position: relative;
    margin: 0 auto;
    top: 45%;
  }
  
  .bd-example-modal-lg .modal-dialog .modal-content{
    background-color: transparent;
    border: none;
  }