try_w3examples_205 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>
    <h3>w3-half内部使用w3-half</h3>
    <p class="w3-large">尝试调整窗口大小！</p>
</div>
<div class="w3-row">
    <div class="w3-half w3-container w3-green">
        <h2>w3-half</h2>
        <div class="w3-row">
            <div class="w3-half w3-container w3-red">
                <h2>w3-half</h2>
                <p>这是一段。</p>
            </div>
            <div class="w3-half w3-container w3-yellow">
                <h2>w3-half</h2>
                <p>这是一段。</p>
            </div>
        </div>
    </div>
    <div class="w3-half w3-container w3-blue">
        <h2>w3-half</h2>
        <div class="w3-row">
            <div class="w3-half w3-container w3-red">
                <h2>w3-half</h2>
 
 
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运行结果
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