Bundling

_layout.cshtml

<!-- Raw -->
<link href="~/Content/themes/base/jquery.ui.all.css" rel="stylesheet" type="text/css" />
<link href="~/Content/Site.css" rel="stylesheet" type="text/css" />
<link href="~/favicon.ico" rel="shortcut icon" type="image/x-icon" />

<script src="~/Scripts/jquery-1.6.2.min.js"></script>
<script src="~/Scripts/jquery-ui-1.8.11.js"></script>
<script src="~/Scripts/modernizr-2.0.6-development-only.js"></script>
<script src="~/Scripts/AjaxLogin.js"></script>
<script src="~/Scripts/App.js"></script>

<!-- Bundled / Minified -->
@{
    var styles = new StyleBundle();
    styles.Add("~/Content/themes/base/jquery.ui.all.css");
    styles.Add("~/Content/Site.css");
    styles.Render();
}

@{
    scripts.Add("~/Scripts/jquery-#.min.js");
    scripts.Add("~/Scripts/jquery-ui-#.min.js");
    scripts.Add("~/Scripts/modernizr-#-development-only.js");
    scripts.Add("~/Scripts/AjaxLogin.js");
    scripts.Add("~/Scripts/App.js");
    scripts.Render(minify: false, bundle: true);
}