try_w3examples_200 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">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
</head>
<body>
<div class="w3-container">
    <h2>移动优先响应</h2>
    <p class="w3-large">尝试调整窗口大小！</p>
</div>
<div class="w3-row w3-border">
    <div class="w3-container w3-half w3-red">
        <h2>w3-half</h2>
        <p>w3-half类使用50％的父容器。</p>
        <p>在小于601像素的屏幕上，其尺寸会调整为100％。</p>
    </div>
    <div class="w3-container w3-half">
        <h2>w3-half</h2>
    </div>
</div>
</body>
</html>
 
 
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运行结果
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