The fixed div at the top can be set to have a translucent effect

nbsp;html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
 
 
<meta> 
<title>顶部固定</title> 
<style> 
html,body {overflow:hidden;margin:0px;width:100%;height:100%;} 
.virtual_body {width:100%;height:100%;overflow-y:scroll;overflow-x:auto;} 
.fixed_div {position:absolute;z-index:2008;top:0px;left:0px;right:16px;height:40px;background:#CCCCCC;border-bottom:3px inset;border-color:#006699; 
//bottom:20px; 
//border:1px solid red; 
//border-style:inset; 
//半透明效果制作 
//filter:alpha(opacity=50); 
//-moz-opacity:0.5; 
//opacity:0.5; 
//background:#666666; 
} 
</style> 
 
 
<div><font>郑州大学</font></div> 
<div> 
<div> 
<p> 


再见，我一定会回来看你的！ 
</p>
</div> 
</div>