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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-sidebar w3-bar-block w3-large w3-light-grey" style="width:30%">
    <a href="#" class="w3-bar-item w3-button">链接 1</a>
    <a href="#" class="w3-bar-item w3-button">链接 2</a>
    <a href="#" class="w3-bar-item w3-button">链接 3</a>
    <a href="#" class="w3-bar-item w3-button w3-padding-16">填充</a>
    <a href="#" class="w3-bar-item w3-button w3-padding-24">填充</a>
    <a href="#" class="w3-bar-item w3-button w3-padding-32">填充</a>
</div>
<div style="margin-left:30%">
    <div class="w3-container">
        <h2>边栏尺寸</h2>
        <p>使用任何w3-small，w3-large，w3-xlarge，w3-xxlarge类来更改边栏的字体大小。</p>
        <p>如果您想要更多填充，请向每个项目添加w3-padding 类。</p>
    </div>
</div>
</body>
</html>
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