<div class="col-md-3">
    <h6>
        <span class="glyphicon glyphicon-search"></span>
        Affiner les résultats
    </h6>

    <div class="panel panel-primary">
        <div class="panel-heading">
            <h4 class="panel-title">
                <a data-toggle="collapse" href="#facetCorpus"> Corpus </a>
                <span id="nbCorpusFacet" class="badge pull-right"></span>
            </h4>
        </div>
        <div id="facetCorpus" class="panel-collapse collapse show">
        </div>
    </div>
</div>