本篇文章主要介绍如何使用css固定位置，非常不错，可以方便提示用户等信息，有感兴趣的小伙伴了解一下。
代码如下：
<!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>层固定位置练习--by 阿会楠</title>
<style type="text/css">
html,body{
overflow:hidden;
padding:0;
margin:0;
width:100%;
height:100%;
}
#_body{
height:100%;
overflow-y:scroll;
width:100%;
height:100%;
}
#adDiv{
position:absolute;
z-index:99999;
bottom:10px;
left:10px;
width:200px;
height:30px;
border:1px solid #8A9ABB;
background:#F0F4F7;
font:12px tahoma;
text-align:center;
line-height:30px;
}
</style>
</head>
<body>
<div id="adDiv"><a href="http://www.jb51.net/">本站</a></div>
<div id="_body">
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<p>大小仅1兆左右 ，足够轻便的商城系统； 易部署，上传空间即可用，安全，稳定； 容易操作，登陆后台就可设置装饰网站； 并且使用异步技术处理网站数据，表现更具美感。 前台呈现页面，兼容主流浏览器，DIV+CSS页面设计； 如果您有一定的网页设计基础，还可以进行简易的样式修改，二次开发， 发布新样式，调整网站结构，只需修改css目录中的css.css文件即可。 商城网站完全独立，网站源码随时可供您下载</p>
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