ОК, если предположить, что это Bootstrap 3, и ваш css-пакет загружает его, можно использовать их пример здесь . Делая попытку интеграции вашего кода, я бы попробовал:
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<!-- Wrap your banner, app name etc. in a link back to home page -->
<a href="@Url.Action("Vidly", "Home", new { area = "" })" class="navbar-brand" title="Return to home page.">
<!-- I am using a font awesome icon plus text. You can use a bootstrap glyph or a banner, image, etc. -->
<span><i class="fa fa-home"></i> My App Name</span>
</a>
</div>
<!-- This is where you put your menu items. It will collapse if screen is small. The id is important to link above. -->
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="active">@Html.ActionLink("Vidly", "Vidly", "Home")</li>
<li>@Html.ActionLink("About", "About", "Home")</li>
<li>@Html.ActionLink("Contact", "Contact", "Home")</li>
</ul>
</div>
</div>
</nav>
<div class="container body-content">
@RenderBody()
<hr />
<footer>
<p>© @DateTime.Now.Year - My ASP.NET Application</p>
</footer>
</div>
@Scripts.Render("~/bundles/jquery")
@Scripts.Render("~/bundles/bootstrap")
@RenderSection("scripts", required: false)
</body>