#modal_popup .modal-dialog .popup-img-box{
  display: inline-block;
  max-width: 600px;
}
#modal_popup .modal-dialog .popup-img-box img{
  max-width: 600px;
  cursor: pointer;
  width: calc(100% - 10px);
}
#modal_popup .modal-dialog .popup-img-box .close{
  margin-bottom: -34px;
  padding: 5px;
  display: none;
  -webkit-appearance:none;
}
#modal_popup .modal-dialog:hover .close{
  display: block;
  color: #ffffff;
  cursor: pointer;
}
#modal_popup .modal-dialog{
  margin-top: 250px;
  max-width: 600px;
  width: 100%;
  text-align: center;
  pointer-events: auto;
  margin-left: auto;
}

@media (min-width: 576px){
  #modal_popup .modal-dialog{
    margin-top: 250px;
    max-width: 600px;
    width: 100%;
    text-align: center;
    pointer-events: auto;
    margin-left: auto;
  }
}