Is there a way to use the modal-header CSS property inside a normal div instead of inside a modal? When I try to do so, I am getting an error saying that the variable is not defined. Can someone please help me understand what I am missing?
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.2/css/bootstrap.min.css" integrity="sha512-b2QcS5SsA8tZodcDtGRELiGv5SaKSk1vDHDaQRda0htPYWZ6046lr3kJ5bAAQdpV2mmA/4v0wQF9MyU6/pDIAg==" crossorigin="anonymous" referrerpolicy="no-referrer" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.2/js/bootstrap.bundle.min.js" integrity="sha512-X/YkDZyjTf4wyc2Vy16YGCPHwAY8rZJY+POgokZjQB2mhIRFJCckEGc6YyX9eNsPfn0PzThEuNs+uaomE5CO6A==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
</head>
<body>
<div>
<div class="modal-header">Trying to use modal-header properties</div>
<div class="modal-body">Some content goes here</div>
<div class="modal-footer">
<button class="btn btn-primary">Primary</button>
<button class="btn btn-secondary">Secondary</button>
</div>
</div>
</body>
</html>