<nav class="navbar navbar-default">
    <div class="container-fluid">        
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                <span class="sr-only">Menú</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand logo" href="#">
                <img src="plantilla/images/logo-ccsm.png" style="height: 40px;" />
            </a>
        </div>
        <div id="btn-login" class="navbar-form navbar-left text-center" role="search"></div>

        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">                
                <li><a href="javascript:void(0);" onclick="iniciarTienda();">Apps</a></li>
                <li><a href="#contacto">Contacto</a></li>
            </ul>
        </div>
    </div>
</nav>