ing: 4rem; margin-left: 40rem; margin-top: 2rem; width: -webkit-fill-available; margin-right: 4rem;" class="col-sm-9 col-xs-12">
    <div class="form-group">
      <label for="title">{{_('Book Title')}}</label>
      <input type="text" class="form-control" name="title" id="title" value="{{book.title}}">
    </div>
    <div class="text-center">
        <button type="button" class="btn btn-default" id="xchange" ><span class="glyphicon glyphicon-arrow-up"></span><span class="glyphicon glyphicon-arrow-down"></s