.modal-dialog {
    width: 100% !important;
    height: 95% !important;

  }
  
  .modal-content {
    height: auto;
    min-height: 100%;
    border-radius: 0;
  }
  
  .iframe-container {
/*
  overflow: hidden;
  padding-top: 56.25%;
  position: relative;
*/
}
 
.iframe-container iframe {
   border: 0;
   height: 100%;
   left: 0;
   position: absolute;
   top: 0;
   width: 100%;
}