w3css-kn6b3dxd_6 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>显示模块</h2>
    <p>w3-section类为任何HTML元素添加了16px的顶部和底部边距，可用于分隔HTML内容的各个部分：</p>
</div>
<div class="w3-container w3-blue">
    <h1>我是蓝色的</h1>
</div>
<div class="w3-container w3-green">
    <h1>我是绿色的</h1>
</div>
<div class="w3-container w3-section w3-blue">
    <h1>我是蓝色的</h1>
</div>
<div class="w3-container w3-section w3-green">
    <h1>我是绿色的</h1>
</div>
</body>
</html>
 
 
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运行结果
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