<div id="modalmantenimiento" class="modal fade" role="dialog">
  <div class="modal-dialog modal-lg">
    <form id="formulario">
      <div class="modal-content">
        <div class="modal-header">
          <h4 class="modal-title">Usuarios</h4>
        </div>
        <div class="modal-body">
          <input type="hidden" id="usu_id" name="usu_id">
          <div class="form-group">
            <label>Nombre</label>
            <input type="text" class="form-control" name="usu_nom" id="usu_nom" required autocomplete="off">
          </div>
          <div class="form-group">
            <label>Correo</label>
            <input type="text" class="form-control" name="usu_correo" id="usu_correo" required autocomplete="off">
          </div>
          <div class="form-group">
            <label>Password</label>
            <input type="password" class="form-control" name="usu_pass" id="usu_pass" required autocomplete="off">
          </div>
        </div>
        <div class="modal-footer">
          <button type="submit" class="btn btn-primary">Guardar</button>
          <button type="button" class="btn btn-secondary" data-dismiss="modal">Cerrar</button>
        </div>
      </div>
    </form>
  </div>
</div>