.modal-body > .carousel-control-prev > .carousel-control-prev-icon {
  display: none;
}
.modal-body > .carousel-control-prev:hover > .carousel-control-prev-icon {
  display: block; 
}
.modal-body > .carousel-control-next > .carousel-control-next-icon {
  display: none;
}
.modal-body > .carousel-control-next:hover > .carousel-control-next-icon {
  display: block; 
}
.modal.fade:not(.show) .modal-dialog {
  transform: none;
}