老师，我这样写可以吗？

来源：7-2 编程练习

慕标1256601

2019-03-12 23:50:59

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title></title>
    <style type="text/css">
        .div1{
            width: 224px;
            height: 250px;
            position: fixed;
            top: 250px;        }
        .div2{
            width: 100%;
        }
        .div3{
             width: 224px;
            height: 250px;
            position: fixed;
            top: 250px;
            right: 0px;
        }
    </style>
</head>
<body>
    <div class="div1">
        <img src="http://climg.mukewang.com/5a3383d00001a3dd02240364.png">
    </div>
    <div class="div2">
        <img src="http://climg.mukewang.com/59c9f7ce0001839219034033.png">
    </div>
    <div class="div3">
        <img src="http://climg.mukewang.com/5a3383c70001f1b702240364.png">
    </div>
</body>
</html>

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