先看看效果：http://keleyi.com/keleyi/phtml/jqtexiao/6.htm
胆小勿入！！！
以下为HTML代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>万圣节快乐！！-柯乐义</title><style type="text/css">body{margin:0px;background-image:url(http://keleyi.com/keleyi/phtml/jqtexiao/6/Halloween2013_Keleyi.jpg); background-repeat:no-repeat;background-color:#030303;background-position:center top;}.animate{margin-top:600px;height:130px;width:620px;margin-left:auto;margin-right:auto;background:url(http://keleyi.com/keleyi/phtml/jqtexiao/6/keleyighost.gif) no-repeat;background-position:-280px center;}</style><script type="text/javascript" src="http://keleyi.com/keleyi/pmedia/jquery/jquery-1.10.2.min.js"></script><script type="text/javascript">$(function guitiao() {$("div#animate_kel"+"eyi_com").css({backgroundPosition:'-280px center'});$("div#animate_ke"+"leyi_com").animate({ backgroundPosition: "620" },20232,guitiao); });</script></head><body><div id="animate_keleyi_com" class="animate"></div><div><a href="http://keleyi.com/a/bjac/438uwrmi.htm" target="_blank">原文</a></div></body></html>