<center> <div class="btn-group" role="group" aria-label="..."> {% if prev %} <a class="btn btn-default" href="{{ prev.link|e }}">Prev Page</a> {% else %} <button type="button" class="btn btn-default disabled">Prev Page</button> {% endif %} {% if next %} <a class="btn btn-default" href="{{ next.link|e }}">Next Page</a> {% else %} <button type="button" class="btn btn-default disabled">Next Page</button> {% endif %} </div> </center>