nav.html

<div class="navbar navbar-default navbar-fixed-top"
     role="navigation">
    <div class="container">

        <!-- Collapsed navigation -->
        <div class="navbar-header">
            <!-- Expander button -->
            <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".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>

            <!-- Main title -->
            <a class="navbar-brand" href="{{ homepage_url }}">{{ site_name }}</a>
        </div>

        <!-- Expanded navigation -->
        <div class="navbar-collapse collapse">
            <!-- Main navigation -->
            <ul class="nav navbar-nav">
                {% for nav_item in nav.nav_items[0].children %}
                    {% if nav_item.children %}
                        <li class="dropdown{% if nav_item.active %} active{% endif %}">
                            <a href="#" class="dropdown-toggle" data-toggle="dropdown">{{ nav_item.title }} <b
                                    class="caret"></b></a>
                            <ul class="dropdown-menu">
                                {% for nav_item in nav_item.children %}
                                    {% include "nav-sub.html" %}
                                {% endfor %}
                            </ul>
                        </li>
                    {% else %}
                        <li {% if nav_item.active %}class="active"{% endif %}>
                            <a href="{{ nav_item.url }}">{{ nav_item.title }}</a>
                        </li>
                    {% endif %}
                {% endfor %}
            </ul>

            <!-- Search, Navigation and Repo links -->
            <ul class="nav navbar-nav navbar-right">
                <li>
                    <a href="#" data-toggle="modal" data-target="#mkdocs_search_modal">
                        <i class="fa fa-search"></i> Search Docs
                    </a>
                </li>
                {% if repo_url %}
                    <li>
                        <a href="{{ repo_url }}" target="_blank">
                            {% if repo_name == 'GitHub' %}
                                <i class="fa fa-github"></i> Contribute on GitHub
                            {% elif repo_name == 'Bitbucket' %}
                                <i class="fa fa-bitbucket"></i>
                            {% endif %}
                        </a>
                    </li>
                {% endif %}
                <li class="dropdown">
                    <button class="btn dropdown-toggle btn-danger btn-version" data-toggle="dropdown">
                        {{ nav.nav_items[0].title }}
                        <span class="caret"></span>
                    </button>
                    <ul class="dropdown-menu" role="menu">
                        {% for nav_item in nav %}
                            <li role="presentation">
                                <a role="menuitem" tabindex="-1" href="{{ nav_item.url }}">
                                    {{ nav_item.title }}
                                </a>
                            </li>
                        {% endfor %}
                    </ul>
                </li>
            </ul>

        </div>
    </div>
</div>