css/clip-path/demo2.html

<!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>
        .demo1 {
            transition: 0.4s cubic-bezier(1, -1, 0, 2);
            clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
        }
        .demo1:hover {
            clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
        }
    </style>
</head>
<body>
    <img class="demo1" src="./mi.png" alt="小米icon">
</body>
</html>