I have tried everything I could find in my research, but I still can't get the background image to show up on the jumbotron. Currently, I am attempting to use an image from the images folder without success, and even trying a link doesn't work. I have tested using div.jumbotron, renaming it, and removing other background properties, yet nothing seems to work.
As a beginner in bootstrap and HTML, I wonder if I am missing something or if I am making some mistake that I'm not aware of.
<head>
<link rel="stylesheet"
href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"
integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z"
crossorigin="anonymous">
<link rel="stylesheet" href="css/styles.css">
</head>
<div class="jumbotron">
<h1 class="display-4">Top Page</h1>
<p class="lead">Simple Bootstrap template.</p>
</div>
.jumbotron {
background-image: url(https://unsplash.com/photos/kjERLXaHjXc);
background-attachment: fixed;
background-position: center;
background-repeat: no-repeat;
background-size: cover; }