请老师检查谢谢

来源：2-4 编程练习

闪电打雷躲树下

2022-09-01 08:31:52

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>过渡</title>
    <style>
        /*补充代码*/
        div{
            width:100px;
            height:100px;
            background-color:pink;
            transition:background-color 1s linear 0s;
        }
        div:hover{
            background-color:orange;
            
        }
    </style>
</head>

<body>
    <div></div>
</body>

</html>

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