老师请问这样可以吗

来源：3-6 编程练习

孫瑪戈

2020-09-04 17:40:07

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>margin外边距</title>
        <style type="text/css">
            * {
                margin: 0;
                padding: 0;
             }
            ul{
                list-style:none;width:300px;height:400px;
                background-color:pink;
                padding-top:40px;
            }
            li{
                width:200px;height:50px;background-color:yellow;
                margin-left:40px;
                /*样式补充*/
            }
                #HTML{
                 margin-top:40px;
                }
                #CSS{
                 margin-top:40px;
                }
                #JS{
                 margin-top:40px;
                }
        </style>
    </head>
    <body>
        <ul>
            <li id="HTML">HTML</li>
            <li id="CSS">CSS</li>
            <li id="JS">JavaScript</li>
        </ul>
    </body>
</html>

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