<!DOCTYPE html>
<html>
   <head>
      <title>Bootstrap Example</title>
      <link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet">
      <script src = "/scripts/jquery.min.js"></script>
      <script src = "/bootstrap/js/bootstrap.min.js"></script>
   </head>
   <body>
      <div class = "row">
         <div class = "col-sm-6 col-md-3">
            <a href = "#" class = "thumbnail">
            <img src = "https://www.yiibai.com/angular4/images/angular-4-mini-logo.jpg" alt =
            "Angular">
            </a>
         </div>
      </div>
   </body>
</html>