<!DOCTYPE html>
<html>
<head>
<title>Finding Elements by Class or Tag</title>
</head>
<body>
<div class="user">User 1</div>
<div class="user">User 2</div>
<div class="user">User 3</div>
<script>
const users = document.getElementsByClassName('user');
// Display the number of users
document.body.insertAdjacentHTML('beforeend', `<p>Number of users: ${users.length}</p>`);
</script>
</body>
</html>