<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Bootstrap 实例 - 内联子标题</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> <h1>我是标题1 h1. <small>我是副标题1 h1</small></h1> <h2>我是标题2 h2. <small>我是副标题2 h2</small></h2> <h3>我是标题3 h3. <small>我是副标题3 h3</small></h3> <h4>我是标题4 h4. <small>我是副标题4 h4</small></h4> <h5>我是标题5 h5. <small>我是副标题5 h5</small></h5> <h6>我是标题6 h6. <small>我是副标题6 h6</small></h6> </body> </html>