1.运行效果如图所示

bootstrap-媒体对象的嵌套_bootstrap


2.实现代码如下

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>媒体对象的嵌套</title>
    <!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" 
    href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" 
    integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" 
    crossorigin="anonymous">

    <!-- 可选的 Bootstrap 主题文件(一般不用引入) -->
    <link rel="stylesheet" 
    href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap-theme.min.css" 
    integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp" 
    crossorigin="anonymous">
</head>
<body>
    <h3>媒体对象的嵌套</h3>
    <div class="media">
        <a class="pull-left" href="#">
            <img class="media-object" 
            src="http://a.disquscdn.com/uploads/users/3740/2069/avatar92.jpg?1406972031" 
            alt="...">
        </a>
        <div class="media-body">
            <h4 class="media-heading">我是大漠</h4>
            <div>我是W3cplus站长大漠,我在写Bootstrap框中的媒体对象测试用例</div>
            <div class="media">
                <a class="pull-left" href="#">
                    <img class="media-object" 
                    src="http://tp2.sinaimg.cn/3306361973/50/22875318196/0" alt="...">
                </a>
                <div class="media-body">
                    <h4 class="media-heading">慕课网</h4>
                    <div>大漠写的《玩转Bootstrap》系列教程即将会在慕课网上发布</div>
                    <div class="media">
                        <a class="pull-left" href="#">
                            <img class="media-object" 
                            src="http://tp4.sinaimg.cn/1167075935/50/22838101204/1" alt="...">
                        </a>
                        <div class="media-body">
                            <h4 class="media-heading">W3cplus</h4>
                            <div>W3cplus站上还有很多教程....</div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div> 


    <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
    <!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js" 
    integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" 
    crossorigin="anonymous"></script>
</body>
</html>