I'm having trouble implementing the sticky footer from the bootstrap4 starter template. The footer is not sticking to the bottom of the page as expected, and I'm not sure why.
Both CSS files (starter-template.css and sticky-footer.css) from the template are located at the same level as index.html
https://i.sstatic.net/ey6Iq.png
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="Mark Otto, Jacob Thornton, and Bootstrap contributors">
<meta name="generator" content="Jekyll v4.1.1">
<title>Boostrap NavBar & Footer</title>
<link rel="canonical" href="https://getbootstrap.com/docs/4.5/examples/starter-template/">
<!-- Bootstrap core CSS -->
<link href="assets/dist/css/bootstrap.min.css" rel="stylesheet">
<style>
.bd-placeholder-img {
font-size: 1.125rem;
text-anchor: middle;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
@media (min-width: 768px) {
.bd-placeholder-img-lg {
font-size: 3.5rem;
}
}
</style>
<!-- Custom styles for this template -->
<link href="starter-template.css" rel="stylesheet">
<link href="sticky-footer.css" rel="stylesheet">
</head>
<body class="d-flex flex-column h-100">
<nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top">
<a class="navbar-brand" href="index.html">NavBar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarsExampleDefault">
<ul class="navbar-nav mr-auto">
<li class="nav-item disabled">
<a class="nav-link dropdown-toggle" href="#" id="dropdown01" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Menu</a>
<div class="dropdown-menu" aria-labelledby="dropdown01">
<a class="dropdown-item" href="#">One</a>
<a class="dropdown-item" href="#">Two</a>
<a class="dropdown-item" href="#">Three</a>
</div>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
<button class="btn btn-secondary my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
<main role="main" class="container">
<div class="starter-template">
<h1>Sticky footer</h1><br>
<p class="lead">Pin a footer to the bottom of the viewport in desktop browsers with this custom HTML and CSS.</p>
</div>
</main>
<!-- /.container -->
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script>
window.jQuery || document.write('<script src="../assets/js/vendor/jquery.slim.min.js"><\/script>')
</script>
<script src="../assets/dist/js/bootstrap.bundle.min.js"></script>
<footer class="footer mt-auto py-3">
<div class="container">
<div class="row">
<span class="text-muted">Place sticky footer content here.</span>
</div>
</div>
</footer>
</body>
</html>