
                        <!-- an example of nested submenu. basic bootstrap collapse component -->
                        <a class="collapsed" href="#sidebar-tables" data-toggle="collapse" data-parent="#sidebar">
                            <span class="icon">
                                <i class="fi flaticon-equal-1"></i>
                            </span>
                            Tables
                            <i class="toggle fa fa-angle-down"></i>
                        </a>
              