背景半透明 

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<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>背景色透明写法</title>
    <style>
        div {
            width: 300px;
            height: 300px;
            /* background-color: black; */
            /* background: rgba(0, 0, 0, 0.3); */
            background: rgba(0, 0, 0, .3);
        }
    </style>
</head>

<body>
    <div>隐形的翅膀</div>
</body>

</html>
posted @ 2021-11-14 15:34  awsoyou  阅读(61)  评论(0)    收藏  举报