                         </li>
                            <li class="nav-item">
                                <a href="#absolute-positioning" class="nav-link " data-smooth-scroll>Absolute
                                    positioning</a>
                            </li>
                            <li class="nav-item">
                                <a href="#fixed-height" class="nav-link " data-smooth-scroll>Fixed height and width</a>
                            </li>
                            <li