my code

<link rel="stylesheet" href="~/css/bootstrap.css" />
<link rel="stylesheet" href="~/css/contact.css" />
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>

@{
    Layout = null;
}

<div class="container">
    <div class="row">
        <h4 class="header">Contact person for each region</h4>
    </div>
    <div class="row">
        <h1 class="desc">How can we help you?</h1>
    </div>
    <div class="row">
        <div class="dropdown">
            <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
                The Netherlands
                <span class="caret"></span>
            </button>
            <ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
                <li><a href="#">Belgium</a></li>
                <li><a href="#">France</a></li>
                <li><a href="#">Germany</a></li>
                <li><a href="#">The United Kingdom</a></li>
            </ul>
        </div>
    </div>

</div>