下面是CSS实现两个层重叠与显示的代码:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>test</title>
<style type="text/css">
#father{
position:relative;
margin:20px auto;
width:400px;
height:100px;
border:1px solid red;
}
#father #a{
position:absolute;
width:100%;
height:50px;
background:blue;
opacity:0.6;
z-index:2;
}
#father #b{
position:absolute;
width:100%;
height:80px;
background:#F4AF19;
text-align:right;
z-index:1;
}
</style>
</head>
<body>
<!--按上面的CSS定位方法布局就会重叠,那个子盒子在前面用Z-INDEX 决定-->
<div id="father">
<div id="a">我是A盒子</div>
<div id="b">我是B盒子</div>
</div>
</body>
</html>