="col-sm-2">Checkbox</div>
          <div class="col-sm-10">
            <div class="form-check">
              <input class="form-check-input" type="checkbox" id="gridCheck1">
              <label class="form-check-label" for="gridCheck1">
                Example checkbox
              </label>
            </div>
          </div>
        </div>
        <div class="form-group row">
          <div class="col-sm-10">
            <button type="submit" class="btn btn-primary">Sign in</button>
          </div>
 