老师帮我看下是否正确

来源：4-3 编程练习

豆包侠

2021-08-23 09:56:46

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
 <title></title>
    <style>
    *{
        margin: 0;
        padding: 0;
    }

    .beijing{
        width: auto;
        height: 4200px;
        background: url(http://climg.mukewang.com/59c9f7ce0001839219034033.png)no-repeat center top;

    }

    .qianduan01{
        width: 224px;
        height: 364px;
        position: fixed;
        right: 0;
        top: 50%;
        margin-top: -200px;

    }
    .qianduan02{
        width: 224px;
        height: 364px;
        position: fixed;
        top: 50%;
        left: 0;
        margin-top: -200px;


    }


    </style>
</head>
<body>
 <div class="beijing">
        <div class="qianduan01">
                <img src="http://climg.mukewang.com/5a3383c70001f1b702240364.png" >
        </div>
        <div class="qianduan02">
                <img src="http://climg.mukewang.com/5a3383d00001a3dd02240364.png" >
        </div>
    </div>
</body>
</html>