I've been struggling to understand bootstrap 4 and the navbar feature is giving me a hard time. I initially managed to get the icon to display correctly, but then I must have made a mistake because now it's not showing up at all. Additionally, I can't seem to make the links dropdown as intended.
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<title>Home</title>
<link href="compworks.css" rel="stylesheet">
</head>
<body>
<div class="container-fluid">
<nav class="navbar navbar-expand-md"> <!-- Top grandparent nav -->
<a class="navbar-brand" href="home.html"><img src="images/logo.png" id="logo"></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="#navbarResponsive">
<ul class="navbar-nav ml-auto">
<li class="nav-item active"><a class="nav-link" href="home.html">HOME</a></li>
<li class="nav-item"><a class="nav-link" href="services.html">SERVICES</a></li>
<li class="nav-item"><a class="nav-link" href="about.html">ABOUT</a></li>
<li class="nav-item"><a class="nav-link" href="contact.html">CONTACT</a></li>
</ul>
</div>
</nav>
</div>
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
</body>
</html>