<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<h1>The picture element</h1>
<p>Resize the browser window to load different images.</p>
<picture>
<source media="(min-width:650px)" srcset="https://www.w3schools.com/tags/img_pink_flowers.jpg">
<source media="(min-width:465px)" srcset="https://www.w3schools.com/tags/img_white_flower.jpg">
<img src="https://www.w3schools.com/tags/img_orange_flowers.jpg" alt="Flowers" style="width:auto;">
</picture>
</body>
</html>
