opacity
English [???p?s?ti] US [o??p?s?ti]
n. ???? ?????.
CSS3 ???? ?? ???
??: ??? ????? ????? ?????.
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CSS3 ???? ?? ?
<!DOCTYPE html>
<html lang="zh-cmn-Hans">
<head>
<meta charset="utf-8" />
<title></title>
<style>
h1 {
margin: 10px 0;
font-size: 16px;
}
.test,
.test2 {
width: 300px;
height: 150px;
padding: 10px;
}
.test {
background:#050;
}
.test2 {
margin: -120px 0 0 50px;
background: #000;
filter: alpha(opacity=50);
opacity: .5;
color: #fff;
}
</style>
</head>
<body>
<h1>下例是一個半透明的效果：</h1>
<div class="test">不透明度為100%的box</div>
<div class="test2">不透明度為50%的box</div>
</body>
</html>???? ?? ?
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