<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style type="text/css">
        div{
            width: 50px;
            height: 50px;
            background-color: lightskyblue;
        }
    </style>
    <script src="../js/jquery-3.5.1.js"></script>
    <script>
        //队列动画
        //.animate().animate() 累积的方式
        $(function () {
            $("div").click(function () {
                $(this).animate({"width":"+=30px"},1000)
                    .animate({"height":"+=30px"},1500);
            });
        });
    </script>
</head>
<body>
<div></div>
</body>
</html>