an>
              </div>
              <span class="help-block">
                Example using Bootstrap's input groups.
              </span>
            </div>
          </div>
          <div class="col-lg-4 col-sm-4 col-12">
            <div class="form-group">
              <label for="more-input-group">More Input Groups</label>
              <div class="input-group">
                <span class="input-group-addon">Color</span>
                <input type="text" id="more-input-group" class="form-control