deosController" class="container">
        <div class="row">
          <div id="accordion">

            <div id="{{ l.id }}" ng-repeat="l in playlist" class="card">

              <div class="card-header" id="heading{{ l.id }}">
                <h5 class="mb-0" style="text-align: center;">
                  <button class="btn btn-link" data-toggle="collapse" data-target="#collapse{{ l.id }}" aria-expanded="true"
                    aria-controls="collapse{{ l.id }}">
                    {{ l.name