<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>
<div class="panel-group">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" href="#filter1">
Filter
</a>
<a class="pull-right" data-toggle="collapse" href="#filter1">
<span class="glyphicon glyphicon-filter"></span>
</a>
</h4>
</div>
<div id="filter1" class="panel-collapse collapse in">
<div class="panel-body">
<div class="filter-setting">
<form action="" mathod="GET">
<label>Lorem Ipsum</label>
<a class="pull-right collapsed-icon-toggle" href="#coll-0" data-toggle="collapse">
<span class="glyphicon glyphicon-minus on-opened"></span>
<span class="glyphicon glyphicon-plus on-closed"></span>
</a>
<br/>
<div id="coll-0" class="collapse in">
<input type="text" placeholder="150"/>
-
<input type="text" placeholder="10000"/>
</div>
<hr class="line"/>
<label>Lorem Ipsum</label>
<a class="pull-right collapsed-icon-toggle" href="#coll-1" data-toggle="collapse">
<span class="glyphicon glyphicon-minus on-opened"></span>
<span class="glyphicon glyphicon-plus on-closed"></span>
