柵格
怕自己忘了······
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title></title>
<link href="css/bootstrap.min.css?v=3.3.6" rel="stylesheet">
<style>
/*通配符選擇器*/
[class*="col-"]{
border: 1px solid gray;
}
@media only screen and (max-width: 768px) {
#demo{
display: none;
}
}
</style>
</head>
<body>
<div class="container-fluid">
<div class="row">
<div id="demo" class="col-lg-2 col-md-1 col-sm-1">左側導航</div>
<div class="col-lg-8 col-md-11 col-sm-11 col-lg-offset-2">右側內容</div>
</div>
</div>
</body>
</html>