I can't seem to get my content to vertically and horizontally center in the body of the page itself in Bootstrap 4. I've used the documentation and multiple answers throughout StackOverflow with those with the same problem to no avail. I'm unsure why this won't work. Help and explanations are appreciated.
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js"></script>
<div class="container-fluid h-100">
<div class="row h-100 justify-content-center align-items-center">
<div class="col-sm-12">
<h1>This is the test</h1>
<a href="#">Let's get started</a>
</div>
</div>
</div>