渐变色

<!DOCTYPE html>
<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>Document</title>
    <style>
        div {
             300px;
            height: 100px;
            background: linear-gradient(to right, rgba(255, 0, 0, 0), rgba(255, 0, 0, 0.2));
        }
    </style>
</head>

<body>
    <div></div>
</body>

</html>

　　

【推广】 免费学中医，健康全家人
原文地址：https://www.cnblogs.com/xuwupiaomiao/p/12176038.html