Bootstrap 超大屏幕（Jumbotron）
Bootstrap的超大屏幕（jumbotron）组件显示网页上的关键内容。
只需在一个<div>元素中包含特征内容，如标题，描述等，并应用.jumbotron类。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
<style type="text/css">
.jumbotron{
margin-top: 15px;
}
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-xs-12">
<div class="jumbotron">
<h1>Learn to Create Websites</h1>
<p>This is a test. This is a test. This is a test. This is a test.
This is a test. This is a test. This is a test. This is a test.
This is a test. This is a test. This is a test. This is a test. </p>
<p><a href="" target="_blank" class="btn btn-primary btn-lg">Get started today</a></p>
</div>
</div>
</div>
</div>
</body>
</html>全屏尺寸
要创建没有圆角的超大屏幕（jumbotron）并覆盖视频口的全部宽度，将其放置在所有容器外，并在其中添加.container。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
</head>
<body>
<div class="jumbotron">
<div class="container">
<h1>Learn to Create Websites</h1>
<p>This is a test. This is a test. This is a test. This is a test. This is a test.
This is a test. This is a test. This is a test. This is a test. </p>
<p><a href="" target="_blank" class="btn btn-primary btn-lg">Get started today</a></p>
</div>
</div>
</body>
</html>