layout.cshtml

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>@ViewBag.Title</title>

    <link href="~/Content/css/main.css" rel="stylesheet" />
    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
    <script src="https://api.mqcdn.com/sdk/mapquest-js/v1.3.2/mapquest.js"></script>
    <link type="text/css" rel="stylesheet" href="https://api.mqcdn.com/sdk/mapquest-js/v1.3.2/mapquest.css" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>
    <header>
        <div class="logoWrapper">
            <img src="~/Content/img/fisk_logo.png" alt="">
        </div>


        <form action="~/home/Soeg" method="post">
            <span><input class="searchFieldInput" type="search" value="" name="Soegetxt" id="Soegetxt" placeholder="Search" aria-label="Search"><button type="submit">Søg</button></span>
        </form>


        <nav>

            <ul class="navMenu">
                <li class="active">@Html.ActionLink("Forsiden", "Index", "Home")</li>
                <li >@Html.ActionLink("Produkter", "Produkter", "Home", new { @id = "produkter-li" })</li>
                <li>@Html.ActionLink("Tilbud", "Tilbud", "Home")</li>
                <li>@Html.ActionLink("Afhentning", "Afhentning", "Home")</li>
                <li>@Html.ActionLink("Hjælp", "Hjælp", "Home")</li>
                <li>@Html.ActionLink("Vilkår", "Vilkår", "Home")</li>
                <li>@Html.ActionLink("Kontakt", "Kontakt", "Home")</li>
                @if (Session["UserName"] != null)
                {
                    <li>@Html.ActionLink("Log ud", "logOut", "Home")<i class="fas fa-fish"></i></li>
                }
                @if (Session["UserName"] == null)
                {
                    <li>@Html.ActionLink("Log in", "Login", "Home")<i class="fas fa-fish"></i></li>

                }


            </ul>

            @if (Session["RankId"].ToString() == "1")
            {
                <ul class="navMenu">
                    <li class="active">@Html.ActionLink("Produkt oversigt", "Index", "Products")</li>
                    <li>@Html.ActionLink("Kategori oversigt", "Index", "Kategoriers")</li>
                    <li>@Html.ActionLink("Bruger oversigt", "Index", "users")</li>
                    <li>@Html.ActionLink("Kommentar oversigt", "Index", "Comments")</li>
                    <li>@Html.ActionLink("Afhentning oversigt", "Index", "Home")</li>
                    <li>@Html.ActionLink("Hjælp..  oversigt", "Index", "Home")</li>
                    <li>@Html.ActionLink("Vilkår..   oversigt", "Index", "Home")</li>
                    <li>@Html.ActionLink("Kontakt oversigt", "Index", "Home")</li>


                </ul>
            }


            <ul class="kat-dropdown">
                @{Html.RenderAction("PartialDropdown", "home");}

            </ul>


        </nav>
    </header>
    <main>
        @RenderBody()
    </main>
    <footer>

        <p>Fisk.nu, Silovej 2. DK-8000 Århus C, Tlf +45 87 11 12 13, info@fisk.nu </p>

    </footer>

    <script src="~/Content/js/dropdown.js"></script>

</body>
</html>