各位老师能帮看下哪里还有误吗

来源：4-3 编程练习

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2018-07-17 22:08:37

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>文本样式</title>
    <style type="text/css">
        /*写出CSS样式*/
        div {
            text-align: center;
            background-color: #eee;
        }

        .gray {
            font-size: 2em;
line-height:5em;
        }

        #udline {
            text-decoration: underline;
            color: red;
            text-transform: capitalize;
            vertical-align: super;
        }
    </style>
</head>

<body>
    <!--写出html代码-->
    <div class="gray">
        <img src="http://climg.mukewang.com/59c21bae000157fa01000059.jpg">
        <span style="font-size:2em">CSS层叠样式表</span><span id="udline">cascading style sheets</span>
    </div>
</body>

</html>

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