51help TIY
码：
<html> <head> <script type="text/javascript" src="../jquery/jquery.js" tppabs="http://www.51help.tk/jquery/jquery.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("button").click(function(){ $("p").offset($("span").offset()); }); }); </script> </head> <body> <p>This is a paragraph.</p> <button>偏移</button> <span id="middlepos" style="position:absolute;left:100px;top:150px;">This is a span</span> </body> </html>
查看结果: