theme/apache/templates/topnav.html

<div class="container">
    <div class="navbar-header">
        <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
                data-target="#river-navbar-collapse">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
        </button>
        <a class="navbar-brand" href="/index.html"><img src="/images/river_logo.png">Apache River&trade;</a>
    </div>

    <div class="collapse navbar-collapse" id="river-navbar-collapse">
        <ul class="nav navbar-nav">
            <li class="dropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button"
                   aria-expanded="false">Downloads <span class="caret"></span></a>
                <ul class="dropdown-menu" role="menu">
                    <li><a href="/user-doc/releases.html">Releases</a></li>
                    <li><a href="/user-doc/maven-artifacts.html">Maven artifacts</a></li>
                </ul>
            </li>
            <li class="dropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button"
                   aria-expanded="false">Documentation <span class="caret"></span></a>
                <ul class="dropdown-menu" role="menu">
                    <li><a href="/user-doc/getting-started.html">Getting started</a></li>
                    <li><a href="/user-doc/networking.html">Networking</a></li>
                    <li><a href="/user-doc/glossary.html">Glossary</a></li>
                    <li><a href="/user-doc/cookbook.html">Cookbook</a></li>
                    <li><a href="/user-doc/supported-platforms.html">Supported platforms</a></li>
                    <li><a href="/user-doc/resources.html">Resources</a></li>
                    <li><a href="/user-doc/readings.html">Readings</a></li>
                    <li class="divider"></li>
                    <li><a href="/user-doc/specification.html">Specification</a></li>
                    <li class="divider"></li>
                    <li><a href="/release-doc/current/api/index.html">Javadoc</a></li>
                </ul>
            </li>

            <li class="dropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button"
                   aria-expanded="false">Community<span class="caret"></span></a>
                <ul class="dropdown-menu" role="menu">
                    <li><a href="/user-doc/get-involved.html">Get involved</a></li>
                    <li><a href="/user-doc/mailing-lists.html">Mailing lists</a></li>
                    <li><a href="/user-doc/found-a-bug.html">Found a bug</a></li>
                    <li><a href="/user-doc/people.html">People</a></li>
                    <li><a href="/user-doc/success-stories.html">Success stories</a></li>
                </ul>
            </li>
            <li class="dropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button"
                   aria-expanded="false">Development <span class="caret"></span></a>
                <ul class="dropdown-menu" role="menu">
                    <li><a href="/dev-doc/source-code.html">Source code</a></li>
                    <li><a href="/dev-doc/development-process.html">Development process</a></li>
                    <li><a href="/dev-doc/building-river.html">Building River</a></li>
                    <li><a href="/dev-doc/ci.html">Continuous Integration</a></li>
                    <li><a href="/dev-doc/building-a-release.html">Building a release</a></li>
                    <li><a href="https://issues.apache.org/jira/browse/RIVER">Issue tracker</a></li>
                </ul>
            </li>
        </ul>

        <ul class="nav navbar-nav navbar-right">
            <li class="dropdown">
                <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button"
                   aria-expanded="false">The Foundation <span class="caret"></span></a>
                <ul class="dropdown-menu" role="menu">
                    <li><a href="http://www.apache.org">Apache</a></li>
                    <li><a href="http://www.apache.org/foundation/thanks.html">Thanks</a></li>
                    <li><a href="http://www.apache.org/foundation/sponsorship.html">Donate</a></li>
                    <li><a href="http://www.apache.org/foundation/how-it-works.html">How it
                        works</a></li>
                </ul>
            </li>
        </ul>

        <form class="navbar-form navbar-right" role="search"
              name="search" id="search" action="http://www.google.com/search" method="get">
            <input value="river.apache.org" name="sitesearch" type="hidden"/>
            <div class="form-group input-group" style="padding: 6px">
                <input type="text" name="q" id="query" placeholder="Google custom search" class="form-control input-sm">
                <span class="input-group-btn">
    <button type="submit" class="btn btn-default btn-sx btn-sm">
        <i class="glyphicon glyphicon-search" style="width: 15; height: 17"></i>
    </button>
    </span>
            </div>
        </form>

    </div>
</div>