Tôi muốn hiển thị phần tử đầu tiên của accordion thu gọn này. Tôi đã làm một số nghiên cứu trên internet nhưng vô íchBootstrap đóng mở, hiển thị phần tử đầu tiên
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" integrity="sha256-7s5uDGW3AHqw6xtJmNNtr+OBRJUlgkNJEo78P4b0yRw= sha512-nNo+yCHEyn0smMxSswnf/OnX6/KwJuZTlNZBjauKhTK0c+zT+q5JOCx0UFhXQ6rJR9jg6Es8gPuD2uZcYDLqSw==" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha256-KXn5puMvxCw+dAYznun+drMdG1IFl3agK0p/pqT9KAo= sha512-2e8qq0ETcfWRI4HJBzQiA3UoyFk6tbNyG+qSaIBZLyW9Xf3sWZHN/lxe9fTh1U45DpPf07yj94KsUHHWe4Yk1A==" crossorigin="anonymous"></script>
<div class="accordion" id="accordion2">
<div class="accordion-group">
<div class="accordion-heading">
<a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapseOne" >
Aller au dossier personnel d'un agent
</a>
</div>
<div id="collapseOne" class="accordion-body collapse" style="height: 0px; ">
<div class="accordion-inner">
<form action="goToAgent.do" method="post">
<p align="center">
<input type="hidden" value="identite" name="retour">
<label for="nomPrenom" >
Entrer le nom complet de l'agent:
</label>
<input type="text" name="nomPrenom" class="typeahead" /> <br>
<input type="submit" value="appliquer" class="btn btn-info" />
</form>
</div>
</div>
</div>
<div class="accordion-group">
<div class="accordion-heading">
<a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion2" href="#collapseTwo">
Ajout d'un nouveau fonctionnaire
</a>
</div>
<div id="collapseTwo" class="accordion-body collapse">
<div class="accordion-inner">
<!-- lorem -->
</div>
</div>
</div>
</div>