菜鸟教程在线编辑器

 
                <!DOCTYPE html>
<html>
<head>
   <title>Try Bootstrap Online</title>
 		<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
		<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
		<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>

<div class="panel panel-default">
   <div class="panel-body">
      This is a Basic panel
   </div>
   <div class="panel-footer">Panel footer</div>
</div>

</body>
</html>
              