Problem with the Bootstrap modal [closed]

The trigger is a text on the label, but when the modal is displayed, only the screen becomes opaque. The modal is up and hidden and you can not close or leave it, I already tried with buttons, putting it in another place, in jQuery , and it does not work.

HTML Code:

         <div class="col-xs-12 col-sm-3 col-md-2 col-lg-2 ">
            <div class="bx-y text-center">
                <h5><b><a data-toggle="modal" data-target="#myModal" >TESTIMONIALES</a></b></h5>
            </div>
        </div>
        <div class="visible-md visible-lg  col-sm-3 col-md-3 col-lg-3">
            <img style="height: 120px;" class="img-responsive" src="img/icons/4.jpg" alt="Testimoniales">
        </div>
    </div>

<!-- Modal -->
    <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
      <div class="modal-dialog" role="document">
        <div class="modal-content">
          <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
            <h4 class="modal-title" id="myModalLabel">TESTIMONIALES</h4>
          </div>
          <div class="modal-body">
            ...
          </div>
          <div class="modal-footer">
            <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
          </div>
        </div>
      </div>
    </div>