xxxxxxxxxx<html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="//apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css"> </head> <body> <div class="container"> <h2>图片</h2> <p> .img-responsive类让图片支持响应式，将很好地扩展到父元素 (通过改变窗口大小查看效果):</p> <img src="/statics/images/course/cinqueterre.jpg" class="img-responsive" alt="Cinque Terre" width="304" height="236"> </div> <script src="//apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script> <script src="//apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script> </body></html>