本文實例講述了jQuery仿gmail實現fixed布局的方法。分享給大家供大家參考。具體實現方法如下：
?
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 <!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>fixed bar demo</title> <style type="text/css" media="screen"> body{ margin:0; height:2000px; } #top{ background-color:#333; height:80px; } #nav{ background-color:#999; height:30px; position:absolute; top:80px; width:100%; } </style> <script src="jquery-1.6.2.min.js" type="text/javascript"></script> <script type="text/javascript"> $(function(){ $(window).scroll(function(){ var scrollTop = $(window).scrollTop(); if(scrollTop < 80) $("#nav").css('top', '80px'); else $("#nav").css('top', scrollTop +'px'); }); }); </script> </head> <body> <div id="top"> </div> <div id="nav"> </div> </body> </html>希望本文所述對大家的jQuery程序設計有所幫助。