nav.html

<!-- Top menu -->
<nav class="navbar navbar-fixed-top navbar-inverse" role="navigation">
    <div class="container-fluid">
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#myNavbar">
                <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="https://hma02.github.io/AllanMa/index.html">
                <span class="hidden-xs">AllanMa</span>
            </a>
        </div>
        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse" id="myNavbar">
            <ul class="nav navbar-nav">
                <li>
                    <a href="index.html">Demos</a>
                </li>
                <li>
                    <a href="https://hma02.github.io/AllanMa/presentations.html">Presentations</a>
                </li>
                <li>
                    <a href="https://hma02.github.io/AllanMa/blog.html">Blog</a>
                </li>
                <li>
                    <a href="https://hma02.github.io/AllanMa/index.html">Home</a>
                </li>
            </ul>
        </div>
    </div>
</nav>