<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> <style> .cont{ width: 400px;margin: 200px auto;} .cont ul li{ margin-top: 20px; border: solid 1px black; text-align: center;line-height: 30px;;} </style> </head> <body> <div class="cont"> <ul> <li class=‘marwrap‘ ><a href="#"><span class="mar">A4令纸生产线</span></a></li> <li class=‘marwrap‘ ><a href="#"><span class="mar">照明设备</span></a></li> <li class=‘marwrap‘ ><a href="#"><span class="mar">燃气轮机</span></a></li> <li class=‘marwrap‘ ><a href="#"><span class="mar">无人机</span></a></li> <li class=‘marwrap‘ ><a href="#"><span class="mar">防暴车</span></a></li> <li class=‘marwrap‘ ><a href="#"><span class="mar">通信设备</span></a></li> <li class=‘marwrap‘ ><a href="#"><span class="mar">特种车辆</span></a></li> </ul> </div> <script type="text/javascript" src="js/jquery.min.js" ></script> <script> $(".cont li a").delegate("span","mouseover",function(){ var content=$(this).html(); $(this).replaceWith("<marquee>"+content+"</marquee>"); }); $(".cont li").delegate("a","mouseout",function(){ var content=$(this).find("marquee").html(); $(this).find("marquee").replaceWith("<span class=‘mar‘>"+content+"</span>"); }) </script> </body> </html>
原文：http://www.cnblogs.com/sishiuliunian/p/5570082.html