<link rel = "stylesheet" href = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"/>
<script src = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script src = "https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<!DOCTYPE html>
<html lang = "en">
<head>
<title>this is a Bootstrap CDN example</title>
<meta name = "viewport" content = "width = device-width, initial-scale=1">
<link rel = "stylesheet" href = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body>
<div class = "container">
<h1 align = "center"> Welcome to lidihuo</h1>
<p>Write your text here..</p>
</div>
<script src = "https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<script src = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</body>
</html>