
              <div class="col-md-6 mb-3">
                <label for="cc-number">Credit card number</label>
                <input type="text" class="form-control" id="cc-number" placeholder="" required>
                <div class="invalid-feedback">
                  Credit card number is required
                </div>
              </div>
            </div>
            <div class="row">
              <div class="col-md-3 mb-3">
                <label for="cc-expiration">Expiration</label>
              