<html lang="en"><head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script></head><body><div class="container"> <h1>Shadows</h1> <p>Use the shadow- classes to to add shadows to an element:</p> <div class="shadow-none p-4 mb-4 bg-light">No shadow</div> <div class="shadow-sm p-4 mb-4 bg-white">Small shadow</div> <div class="shadow p-4 mb-4 bg-white">Default shadow</div> <div class="shadow-lg p-4 mb-4 bg-white">Large shadow</div></div></body></html>