label="Default button group">
                <button type="button" class="btn btn-secondary">Left</button>
                <button type="button" class="btn btn-secondary">Middle</button>
                <button type="button" class="btn btn-secondary">Right</button>
              </div>
              <br>
              <div class="btn-group btn-group-sm" role="group" aria-label="Small button group">
                <button type="button" class="btn btn-secondary">Left</button>
                <button type="b