input class="form-control" id="readOnlyInput" type="text" placeholder="Readonly input here..." readonly>
            </fieldset>
          </div>

          <div class="form-group has-success">
            <label class="form-control-label" for="inputValid">Valid input</label>
            <input type="text" value="correct value" class="form-control is-valid" id="inputValid">
            <div class="valid-feedback">Success! You've done it.</div>
          </div>

          <div class="form-group has-danger">
