div class="input-group">
                <input type="text" class="form-control year-display" />
                <div class="input-group-addon"><i class="fa fa-calendar"></i></div>
              </div>
            </div>
          </div>
        </div>
      </form>
    </div>
  </div>

  <div class="row">
    <div class="col-md-3">

      <!-- Info box -->
      <div class="panel panel-default">
        <div class="panel-heading">
          <h3 class="panel-title">Visualization Controls</h3>
        </div>