Bootstrap image Thumbnail

.img-thumbnail class is used to make image in thumbnail size.

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Bootstrap Images Example</title>
    <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
    <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</head>
<body>
    <div class="container">
        <img src="http://learnkode.com/files/Bootstrap.png" class="img-thumbnail" alt="Bootstrap" width="304" height="236" />
    </div>

</body>
</html>

Output