<!doctype html> <html> <head> <meta charset="utf-8"> <title>css3鼠标悬浮放大效果</title> <script src="http://libs.baidu.com/jquery/1.11.3/jquery.min.js"></script> <style> .imgBox { width: 365px; height: 223px; overflow:hidden; } .imgBox img { transition:all .4s; -moz-transition:all .4s; -webkit-transition:all .4s; -o-transition:all .4s; } .imgBox img:hover { transform:scale(1.2); } </style> </head> <body> <div class="imgBox"> <img src="http://dev.ixincheng.com/xcview/images/xianxia_03.jpg" alt=""> </div> 记得考虑兼容性 </body> </html>