JSFiddle - React, Tailwind, and code Playground
by _jro
HTML
<html>
<head>
<title>responsive images</title>
</head>
<body>
<div class="container">
<img src="http://animatedviews.com/wp-content/uploads/2009/04/pupnamedscooby1.jpg" width="294" height="225" class="frame" alt="pup named scooby doo">
</div>
</body>
</html>
CSS
body { background: #dcdcdc; }
img { max-width: 100%; height: auto; }
.container { padding: 10px 12px; }
.frame {
background: #fff;
padding: 6px;
box-shadow: 1px 1px 2px rgba(40, 40, 40, 0.8);
-moz-box-shadow: 1px 1px 2px rgba(40, 40, 40, 0.8);
-webkit-box-shadow: 1px 1px 2px rgba(40, 40, 40, 0.8);
}