老师，麻烦看一下2-9的编程代码

来源：1-1 课程简介

拆以时记

2021-04-07 23:02:26

老师效果和照片上的不一样啊问题在哪代码书写有没有问题

<!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>小鸭子图片文字过渡效果</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        div {
            width: 400px;
            height: 380px;
            margin: 0 auto;
            position: relative;
        }
        div img {
            width: 400px;
            height: 380px;

        }
        div p {
            width: 390px;
            height: 80px;
            background-color: rgba(0,0,0,0.5);
            position: absolute;
            top: 380px;
            left: 0;
            font-size: 18px;
            font-weight: bold;
            color: white;
            line-height: 80px;
            padding-left: 10px;
            opacity: 0;
            transition: top 2s linear 0s;   
            transition: opacity 1s linear 0s;   
        }
        div:hover p {
            opacity: 1;
            top: 300px;
        }
    </style>
</head>
<body>
    <div>
        <img src="img/duck.png" alt="小鸭子">
        <p>这是一只小黄鸭</p>
    </div>
</body>
</html>