.logo {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url("/img/logo.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}
@media (max-width: 900px) {
  .logo {
    max-width: 100%;
  }
}

.modal.fade .modal-dialog-center {
  top: -50%;
  left: -50%;
  transform: translate(0%, 0%) !important;
}

.modal.in .modal-dialog-center {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) !important;
}