w3css-iguf3dxa_2 在线代码实例

实例代码( Tip: 登录后体验更佳 )
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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 w3-center">
    <h2>中心内容</h2>
    <img src="https://atts.w3cschool.cn/img_car.jpg" alt="car" style="width:80%;max-width:320px">
    <p>w3-center 类将元素居中。</p>
</div>
</body>
</html>
 
 
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运行结果
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