index.html

        <nav class="navbar navbar-default navbar-fixed-top" role="navigation">
                    <div class="container">
                            <div class="navbar-header">
                                    <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>
                            </div> <!--./navbar-header-->

                            <div class="navbar-collapse collapse">
                                    <ul class="nav nav-justified">
                                        <li><a data-scroll='' href="#app">About the app</a></li>
                                        <li><a data-scroll='' href="#features">Features</a></li>
                                        <li><a data-scroll='' href="#screenshots">Screenshots</a></li>
                                        <li><a data-scroll='' href="#download">Download</a></li>
                                        <li><a data-scroll='' href="#support">Support</a></li>
                                    </ul>
                            </div>

                    </div> <!--./container-->
        </nav> <!--./navbar navbar-->