Can anyone help with this Navber code issue?
<nav class="navbar navbar-expand-lg navbar-light" style="background-color: #FDFEFF;">
<div class="collapse navbar-collapse justify-content-center" id="navbarNav">
<a class="navbar-brand" href="#">
<img src="images\logo1.png" width="200" height="80" class="d-inline-block align-top" alt="">
</a>
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="index.html">Home <span class="sr-only">(current)</span></a>
</li>
<li class="navbar-nav dropdown">
<a class="nav-link dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Behandelingen
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="sportmassage.html">Sportmassage</a>
<a class="dropdown-item" href="#">Massagetherapie</a>
<a class="dropdown-item" href="#">Ontspanningsmassage</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Afspraak maken</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Tarieven</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Contact</a>
</li>
</ul>
</div>
</nav>
Bootstrap code:
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
Having trouble with the dropdown menu in the navbar, any suggestions on how to resolve this? I'm new to bootstrap and unsure what's causing the problem.