源代码 ：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Bootstrap 实例 - 标签</title> <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script> <script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>标签</h2> <p>.label 类放置在不同的元素中（自适应大小）:</p> <h1>标题 1 <span class="label label-warning">新</span></h1> <h3>标题 3 <span class="label label-warning">新</span></h3> <h5>标题 5 <span class="label label-warning">新</span></h5> <p>段落 <span class="label label-warning">新</span></p> </div> </body> </html>
运行结果