heart-like.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body{
            height: 100vh;
            width: 100vw;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .box {
            width: 50px;
            height: 50px;
            background: #f3e6e61c url(dianzan.png) no-repeat;
            background-position: left;
            background-size: cover;
            cursor: pointer;
        }

        .boxactive {
            background-position: right;
            transition: background .75s steps(28);
            /* 根据图片有多少帧，比如我这张图片有29张小图，那就是填28 */
        }
    </style>
</head>

<body>
    <div id="box" class="box"></div>
    <script>
        var box = document.querySelectorAll('.box')
        box[0].addEventListener('click', () => {
            box[0].classList.add('boxactive')
            setTimeout(() => {
                box[0].classList.remove('boxactive')
            }, 750)
            // 750ms后移除class：boxactive
        })
    </script>
</body>

</html>