<div id="visualizar" class="modal fade" data-backdrop="static" data-keyboard="false">
    <div class="modal-dialog modal-lg" style="max-width: 1350px;" role="document">
        <div class="modal-content bd-0">
            <div class="modal-body">
                <div class="content">
                    <div class="embed-responsive embed-responsive-16by9">
                        <iframe id="pdf" class="embed-responsive-item" allowfullscreen></iframe>
                    </div>                    
                </div>
                <br>
                <button type="reset" class="btn btn-danger tx-11 tx-uppercase pd-y-12 pd-x-25 tx-mont tx-medium" aria-label="Close" aria-hidden="true" data-dismiss="modal"><i class="fa fa-close"></i>Salir</button>
            </div> 
        </div>
    </div>
</div>