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来源：2-2 编程练习

慕UI4313976

2020-03-04 10:10:23

<!DOCTYPE html>
<html>
<head>
    <title>群组选择器</title>
    <style type="text/css">
    /*此处写代码*/
    div > section,
    div > article,
    div > aside,
    div > div {
        color: red;
    }
    </style>
</head>
<body>
<div>
    <section>section</section>
    <article>article</article>
    <aside>aside</aside>
    <div>div</div>
</div>
</body>
</html>

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