CSS 网页顶部固定工具栏拖动无闪烁实现代码

实际上细心的朋友会发现，这个顶部的工具条实则是一个平铺的背景图像，CSS起到固定背景的作用，也算是一种独特的实现方法。

<！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=gb2312" /> <title>顶部拖动无闪烁菜单栏</title> <style type="text/css"> * { margin: 0px; padding: 0px; } body { background-image: url（）; background-attachment: fixed; } #topNavWrapper { width: 980px; text-align: left; height: 31px; margin: 0px auto; z-index:100; _position: relative ; _top:0px; } #topNav { width: 980px; float: left; display: block; z-index: 100; overflow: visible; position: fixed; top: 0px; /* position fixed for IE6 */ _position: absolute; _top: expression（documentElement.scrollTop + "px"）; background-image: url（/upload/2010-3/20100303232637297.gif）; background-repeat: no-repeat; background-position: right; height: 31px; } </style> </head> <body><ul class="jd_menu" id="topNav"> <li>脚本之家</li> </ul><table><tr><td height="1080"></td></tr></table> </body> </html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]