老师，这样做对吗

来源：4-3 编程练习

慕勒2497449

2020-02-27 20:00:54

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style type="text/css">
        *{
            margin: 0;
            padding: 0;
        }
        .container{
            width: 100%;
            height: 4033px;
        }
        .main{
            width: 100%;
            height: 100%;
            background: url("http://climg.mukewang.com/59c9f7ce0001839219034033.png") no-repeat center top;
        }
        .rightAdvertise{
            width: 224px;
            height: 364px;
            background: url("http://climg.mukewang.com/5a3383c70001f1b702240364.png") no-repeat;
            position: fixed;
            top: 50%;
            margin-top: -182px;
            right: 0;
        }
        .leftAdvertise{
            width: 224px;
            height: 100%;
            background: url("http://climg.mukewang.com/5a3383d00001a3dd02240364.png") no-repeat;
            position: fixed;
            top: 50%;
            margin-top: -182px;
            left: 0;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="main">
            <div class="leftAdvertise"></div>
            <div class="rightAdvertise"></div>
        </div>
    </div>
</body>
</html>

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