扁平按钮样式

上图
&lt;!DOCTYPE html&gt;
&lt;html lang="en"&gt;
<head&gt;
    <meta charset="UTF-8"&gt;
    <title&gt;扁平按钮</title&gt;
    <style>
        body {
            margin: 0;
            padding: 0;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background: #efeeee;
            gap: 30px;
        }

        .img {
            width: 100px;
            height: 100px;
            display: flex;
            justify-content: center;
            align-items: center;
            border-radius: 20px;
            box-shadow: 18px 18px 30px rgba(0, 0, 0, 0.2), -18px -18px 30px rgba(255, 255, 255, 1);
            transition: all 0.2s ease-out;
        }

        .img svg {
            width: 60px;
            height: 60px;
            transition: all 0.2s ease-out;
        }

        .img:nth-child(1) svg path {
            fill: #01b4ff;
        }

        .img:nth-child(2) svg path {
            fill: #000000;
        }

        .img:nth-child(3) svg path {
            fill: #1abc9c;
        }

        .img:nth-child(4) svg path {
            fill: #4B80EE;
        }

        .img:nth-child(5) svg path {
            fill: orangered;
        }

        .img:hover {
            cursor: pointer;
            box-shadow: 0 0 0 rgba(0, 0, 0, 0.2), 0 0 0 rgba(255, 255, 255, 0.8), inset 18px 18px 30px rgba(0, 0, 0, 0.1), inset -18px -18px 30px rgba(255, 255, 255, 0.1);
        }

        .img:hover svg {
            width: 58px;
            height: 58px;
        }
    </style>
</head>
<body>
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</body>
</html>