<!DOCTYPE html> <html>...-慕课网

                        课程
                    
                        /前端开发
                        
                            /Bootstrap
                        
                        /基于bootstrap的网页开发

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">

<title>Hello World</title>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<style src="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css"></style>

</head>

<body>
<h1>Hello World!</h1>
<p><div class="btn btn-primary btn-lg">我是按钮，按我一下</div></p>
</body>
</html>