<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class='row'> <div class='col-md-12'> <div class="panel-group" id="accordion"> <div class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a data-toggle="collapse" data-parent="#accordion" href="#znajomi"> Twoi znajomi </a> </h4> </div> <div id="znajomi" class="panel-collapse collapse in"> <div class="panel-body"> ... znajomi ... </div> </div> </div> <div class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a data-toggle="collapse" data-parent="#accordion" href="#szukaj"> Znajdź nowych znajomych </a> </h4> </div> <div id="szukaj" class="panel-collapse collapse"> <div class="panel-body"> ... wyszukiwarka ... </div> </div> </div> <div class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a data-toggle="collapse" data-parent="#accordion" href="#zaproszenia"> Przejrzyj zaproszenia </a> </h4> </div> <div id="zaproszenia" class="panel-collapse collapse"> <div class="panel-body"> ... zaproszenia ... </div> </div> </div> </div> </div> </div> </div>