try_w3examples_55 在线代码实例

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<!DOCTYPE html>
<html>
<head>
    <title>W3.CSS(w3cschool.cn)</title>
    <meta name="viewport" content="width=device-width, initial-scale=1" charset="UTF-8">
    <link rel="stylesheet" href="https://7npmedia.w3cschool.cn/w3.css">
</head>
<body>
<div class="w3-container">
    <h2>圆内圆</h2>
    <div class="w3-padding-32 w3-green w3-circle">
        <div class="w3-padding-32 w3-red w3-circle w3-center" style="width:55%">
            <p class="w3-xlarge">你好<br>W3.CSS!</p>
        </div>
    </div>
</div>
</body>
</html>
 
 
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运行结果
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