.size-modal{padding:15px;}
.size-modal .modal-dialog{max-height:calc(100vh - 30px);display:flex;align-items:center;margin-top:15px;margin-bottom:15px;}
.size-modal .modal-content{max-height:calc(100vh - 30px);overflow-y:auto;-webkit-overflow-scrolling:touch;}
.size-modal .modal-content img{max-width:100%;height:auto;display:block;margin:0 auto;}
@media(max-width:767px){
  .size-modal{padding:10px;}
  .size-modal .modal-dialog{max-height:calc(100vh - 20px);margin-top:10px;margin-bottom:10px;}
  .size-modal .modal-content{max-height:calc(100vh - 20px);}
}