src/_includes/nav.html

<nav class="navbar navbar-expand-lg navbar-light fixed-top">
    <div class="container">
        <!-- <a class="navbar-brand mr-auto" href="#"><img style="height: 50px" src="assets/img/apache-feather.png" /></a> -->
        <a class="navbar-brand mr-auto" href="/"><img src="{{site.baseurl}}/assets/img/activemq_logo_black_small.png" style="height: 50px"/></a>
        <button class="navbar-toggler ml-auto" type="button" data-toggle="collapse" data-target="#navbarContent" aria-controls="navbarContent" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>

        <div class="ml-auto collapse navbar-collapse" id="navbarContent">
            <ul class="navbar-nav ml-auto">
                <li class="nav-item">
                    <a class="nav-link active" href="{{site.baseurl}}/">Home</a>
                </li>
                <li class="nav-item dropdown">
                    <a class="nav-link" id="navbarDropdownComponents" data-target="#" href="" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Components<span class="caret"></span></a>
                    <ul class="dropdown-menu dropdown-menu-center" aria-labelledby="navbarDropdownComponents">
                        <div class="row">
                            <div class="col-12">
                                <ul class="multi-column-dropdown">
                                    <li class="nav-item"><a class="dropdown-item" href="{{site.baseurl}}/components/classic">ActiveMQ "Classic"</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="{{site.baseurl}}/components/artemis/">ActiveMQ Artemis</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="{{site.baseurl}}/components/nms">NMS Clients</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="{{site.baseurl}}/components/cms">CMS Client</a></li>
                                </ul>
                            </div>
                        </div>
                    </ul>
                </li>
                <li class="nav-item dropdown">
                    <a class="nav-link" id="navbarDropdownCommunity" data-target="#" href="" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Community<span class="caret"></span></a>
                    <ul class="dropdown-menu dropdown-menu-center multi-column columns-1" aria-labelledby="navbarDropdownCommunity">
                        <div class="row">
                            <div class="col-12">
                                <ul class="multi-column-dropdown">
                                    <li class="nav-item"><a class="dropdown-item" href="{{site.baseurl}}/contact">Contact Us</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="{{site.baseurl}}/contributing">Contribute</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="{{site.baseurl}}/issues">Report Issues</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="{{site.baseurl}}/support">Support</a></li>
                                </ul>
                            </div>
                          </div>
                    </ul>
                </li>
                <li class="nav-item dropdown">
                    <a class="nav-link" id="navbarDropdownTeam" data-target="#" href="" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"><img src="{{site.baseurl}}/assets/img/feather.png" style="height:20px">Apache<span class="caret"></span></a>
                    <ul class="dropdown-menu dropdown-menu-center multi-column columns-1" aria-labelledby="navbarDropdownTeam">
                        <div class="row">
                            <div class="col-sm-12">
                                <ul class="multi-column-dropdown">
                                    <li class="nav-item"><a class="dropdown-item" href="https://www.apache.org">The Apache Software Foundation</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="https://www.apache.org/licenses/">License</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="https://www.apache.org/foundation/sponsorship.html">Sponsorship</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="https://www.apache.org/foundation/thanks.html">Thanks</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="{{site.baseurl}}/security-advisories">Security</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="https://www.apache.org/events/current-event">Events</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="https://people.apache.org/phonebook.html?pmc=activemq">PMC & Committers</a></li>
                                    <li class="nav-item"><a class="dropdown-item" href="{{site.baseurl}}/team/reports">Board Reports</a></li>
                                </ul>
                            </div>
                        </div>
                    </ul>
                </li>
            </ul>
        </div>
    </div>
</nav>