You must run accordion on the same page twice.
Accordion Example:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> <div class="container"> <h2>Accordion Example</h2> <p><strong>Note:</strong> The <strong>data-parent</strong> attribute makes sure that all collapsible elements under the specified parent will be closed when one of the collapsible item is shown.</p> <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="#collapse1">Collapsible Group 1</a> </h4> </div> <div id="collapse1" class="panel-collapse collapse in"> <div class="panel-body">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</div> </div> </div> <div class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a data-toggle="collapse" data-parent="#accordion" href="#collapse2">Collapsible Group 2</a> </h4> </div> <div id="collapse2" class="panel-collapse collapse"> <div class="panel-body">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</div> </div> </div> <div class="panel panel-default"> <div class="panel-heading"> <h4 class="panel-title"> <a data-toggle="collapse" data-parent="#accordion" href="#collapse3">Collapsible Group 3</a> </h4> </div> <div id="collapse3" class="panel-collapse collapse"> <div class="panel-body">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.</div> </div> </div> </div> </div> If you just place the accordion challenge on the page twice, the first one will work normally, and the second one won't. Tell me, how do two identical accordions run on the same page?
