<div class="modal fade" id="modal-exemplo">
  <div class="modal-dialog">

    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal">
          <span>&times;</span>
        </button>
        <h4 class="modal-title">Titulo do Modal</h4>
      </div>

      <div class="modal-body">
        <p>Conteúdo do Modal</p>
      </div>

      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Cancelar</button>
        <button type="button" class="btn btn-primary">Salvar</button>
      </div>

    </div> <!-- /.modal-content -->
  </div> <!-- /.modal-dialog -->
</div> <!-- /.modal -->