w3css-7xel3dxg_1 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>显示笔记</h2>
    <p>w3-panel类可用于显示各种注释：</p>
    <div class="w3-panel w3-yellow">
        <p>伦敦是英国人口最多的城市，拥有超过900万居民。</p>
    </div>
    <div class="w3-panel w3-border">
        <p>伦敦是英国人口最多的城市，拥有超过900万居民。</p>
    </div>
    <div class="w3-panel w3-light-grey w3-border w3-round">
        <p>伦敦是英国人口最多的城市，拥有超过900万居民。</p>
    </div>
    <div class="w3-panel w3-pale-blue w3-leftbar w3-border-blue">
        <p>伦敦是英国人口最多的城市，拥有超过900万居民。</p>
    </div>
    <div class="w3-panel w3-pale-red w3-leftbar w3-rightbar w3-border-red">
        <p>伦敦是英国人口最多的城市，拥有超过900万居民。</p>
    </div>
    <div class="w3-panel w3-pale-yellow w3-topbar w3-bottombar w3-border-yellow">
        <p>伦敦是英国人口最多的城市，拥有超过900万居民。</p>
 
 
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