<!DOCTYPE html>
<html lang="en">
<head><meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Any title</title>
</head>
<body>
//write code
</body>
</html>
<meta name="viewport" content="width=device-width, initial-scale=1">
.container类提供了一个响应性的固定宽度容器。
.container-fluid 类提供了一个全宽度的容器,横跨视口的整个宽度。
<!DOCTYPE html>
<html lang="en">
<head>
<title>this is a Bootstrap 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> First Bootstrap web page</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>