を保存</button>
                  <button type="button" class="btn btn-secondary" data-dismiss="modal">閉じる</button>
                </div>
              </div>
            </div>
          </div>

          <h2>Toast</h2>
          <div class="bs-component d-flex justify-content-center p-md-4">
            <div class="toast fade show" role="alert" aria-live="assertive" aria-atomic="true">
              <div class="toast-header">
                <img class="bd-placeholder-img rounded mr-2" width="20