 class="input-group form-outline flex-nowrap">
                          <span class="input-group-text" id="addon-wrapping">@</span>
                          <input
                            type="text"
                            class="form-control"
                            id="input4"
                            placeholder="Username"
                            aria-label="Username"
                            aria-describedby="addon-wrapping"
                          />
                         