    <div class="valid-feedback">This field is valid!</div>
                                </div>

                                <div class="col-sm-4 mt-3">Amount:
                                    <input class="form-control" type="number" value="1" min="0" name="amount">
                                    <div class="valid-feedback">This field is valid!</div>
                                </div>
                            </span>
                            <br>
                            <span cl