<nav class="navbar navbar-expand-md navbar-dark bg-dark">
  <a class="navbar-brand" href="{{ site.baseurl }}/">Apache Arrow&#8482;&nbsp;&nbsp;&nbsp;</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

    <!-- Collect the nav links, forms, and other content for toggling -->
    <div class="collapse navbar-collapse" id="arrow-navbar">
      <ul class="nav navbar-nav">
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="#"
             id="navbarDropdownProjectLinks" role="button" data-toggle="dropdown"
             aria-haspopup="true" aria-expanded="false">
             Project Links
          </a>
          <div class="dropdown-menu" aria-labelledby="navbarDropdownProjectLinks">
            <a class="dropdown-item" href="{{ site.baseurl }}/install/">Install</a>
            <a class="dropdown-item" href="{{ site.baseurl }}/blog/">Blog</a>
            <a class="dropdown-item" href="{{ site.baseurl }}/release/">Releases</a>
            <a class="dropdown-item" href="https://issues.apache.org/jira/browse/ARROW">Issue Tracker</a>
            <a class="dropdown-item" href="https://github.com/apache/arrow">Source Code</a>
          </div>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="#"
             id="navbarDropdownCommunity" role="button" data-toggle="dropdown"
             aria-haspopup="true" aria-expanded="false">
             Community
          </a>
          <div class="dropdown-menu" aria-labelledby="navbarDropdownCommunity">
            <a class="dropdown-item" href="http://mail-archives.apache.org/mod_mbox/arrow-user/">User Mailing List</a>
            <a class="dropdown-item" href="http://mail-archives.apache.org/mod_mbox/arrow-dev/">Dev Mailing List</a>
            <a class="dropdown-item" href="https://cwiki.apache.org/confluence/display/ARROW">Developer Wiki</a>
            <a class="dropdown-item" href="{{ site.baseurl }}/committers/">Committers</a>
            <a class="dropdown-item" href="{{ site.baseurl }}/powered_by/">Powered By</a>
          </div>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="#"
             id="navbarDropdownSpecification" role="button" data-toggle="dropdown"
             aria-haspopup="true" aria-expanded="false">
             Specification
          </a>
          <div class="dropdown-menu" aria-labelledby="navbarDropdownSpecification">
            <a class="dropdown-item" href="{{ site.baseurl }}/docs/memory_layout.html">Memory Layout</a>
            <a class="dropdown-item" href="{{ site.baseurl }}/docs/metadata.html">Metadata</a>
            <a class="dropdown-item" href="{{ site.baseurl }}/docs/ipc.html">Messaging / IPC</a>
          </div>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="#"
             id="navbarDropdownDocumentation" role="button" data-toggle="dropdown"
             aria-haspopup="true" aria-expanded="false">
             Documentation
          </a>
          <div class="dropdown-menu" aria-labelledby="navbarDropdownDocumentation">
            <a class="dropdown-item" href="{{ site.baseurl }}/docs/python">Python</a>
            <a class="dropdown-item" href="{{ site.baseurl }}/docs/cpp">C++ API</a>
            <a class="dropdown-item" href="{{ site.baseurl }}/docs/java">Java API</a>
            <a class="dropdown-item" href="{{ site.baseurl }}/docs/c_glib">C GLib API</a>
            <a class="dropdown-item" href="{{ site.baseurl }}/docs/js">Javascript API</a>
          </div>
        </li>
        <!-- <li><a href="{{ site.baseurl }}/blog">Blog</a></li> -->
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="#"
             id="navbarDropdownASF" role="button" data-toggle="dropdown"
             aria-haspopup="true" aria-expanded="false">
             ASF Links
          </a>
          <div class="dropdown-menu" aria-labelledby="navbarDropdownASF">
            <a class="dropdown-item" href="http://www.apache.org/">ASF Website</a>
            <a class="dropdown-item" href="http://www.apache.org/licenses/">License</a>
            <a class="dropdown-item" href="http://www.apache.org/foundation/sponsorship.html">Donate</a>
            <a class="dropdown-item" href="http://www.apache.org/foundation/thanks.html">Thanks</a>
            <a class="dropdown-item" href="http://www.apache.org/security/">Security</a>
          </div>
        </li>
      </ul>
      <a href="http://www.apache.org/" class="flex-row ml-md-auto">
        <img style="float:right;" src="{{ site.baseurl }}/img/asf_logo.svg" width="120px"/>
      </a>
      </div><!-- /.navbar-collapse -->
    </div>
  </nav>