                              <div class="input-group">
                                            <input id="simple_search" label="simple_search" aria-label="simple_search" type="text" name="query" class="form-control"
                                                placeholder="{% trans "Search" %}..." value="{{clean_query}}">
                                            <span class="input-group-btn">
                                                <button id="simple_search_submit" class="btn btn-primary"