s="form-control"
                placeholder=""
                aria-label="Example text with two button addons"
              />
            </div>

            <div class="input-group">
              <input
                type="text"
                class="form-control"
                placeholder="Recipient's username"
                aria-label="Recipient's username with two button addons"
              />
              <button class="btn btn-primary" type="button">Button</button>
              <button