Bootstrap
Bootstrap的基本模板
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap 101 Template</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- Bootstrap -->
<link rel="stylesheet" href="http://cdn.bootcss.com/twitter-bootstrap/3.0.2/css/bootstrap.min.css">
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="http://cdn.bootcss.com/html5shiv/3.7.0/html5shiv.min.js"></script>
<script src="http://cdn.bootcss.com/respond.js/1.3.0/respond.min.js"></script>
<![endif]-->
</head>
<body>
<h1>Hello, world!</h1>
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="http://cdn.bootcss.com/jquery/1.10.2/jquery.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="http://cdn.bootcss.com/twitter-bootstrap/3.0.2/js/bootstrap.min.js"></script>
</body>
</html>
Bootstrap是移动设备优先的。针对移动设备的样式融合进了框架的每个角落，而不是一个单一的文件。
为了确保适当的绘制和触屏缩放，需要在<head>之中添加viewport元数据标签。
可缩放
<meta name="viewport" content="width=device-width, initial-scale=1.0">
禁止缩放
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
