.media-middle {vertical-align: middle!important;}
.media-top {vertical-align: top!important;}
.media-bottom {vertical-align: bottom!important;}
.modal-dialog {
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
}
.modal-open .modal {
    overflow-y: hidden;
}
.modal-small>.modal-dialog{width:300px;}
.modal-medium>.modal-dialog{width:500px;}
.modal-large>.modal-dialog{width:700px;}
.modal-body {
    overflow-y: auto;
}
.modal-footer {
    margin-top: 0;
}
body.modal-open{padding-right:0!important;}
@media (max-width: 767px) {
  .modal-dialog {
    width: 100%;
  }
  .modal-large>.modal-dialog,.modal-medium>.modal-dialog,.modal-small>.modal-dialog{
    width: 80%;
  }
}