<title>半透明div</title>
<style>
#div1 { margin:0px auto; width:500px; height:370px ; text-align:center; background:url(/360jisu/360Chrome/Chrome/User%20Data/Temp/index?r=0.8688318999484181)
);}
#div2 { height:330px; filter:alpha(Opacity=80);-moz-opacity:0.5;opacity: 0.5;z-index:100; background-color:#ffffff; }
</style>
</head>
<body>
<div id="div1">
<div style="padding:20px;"><div id="div2">这里是透明的DIV</div></div>
</div>