     </calcite-block-section>
                      </calcite-block-content>
                    </calcite-block>
                    <button slot="footer">Save</button>
                    <button slot="footer">Cancel</button>
                  </calcite-panel>
                </calcite-flow>
              </calcite-shell-panel>
              <div slot="header">
                <header class="header">
                  <h2 class="heading">My App</h2>
                </header>
              </div>
         