try_w3examples_104 在线代码实例

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运行代码

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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 class="w3-container">
<h2>圆角化警告</h2>
<p>如果需要圆角警报，请使用 w3-round 类：</p>
<div class="w3-panel w3-green w3-round">
    <h3>成功！</h3>
    <p>这里使用了w3-round。</p>
</div>
<div class="w3-panel w3-green w3-round-large">
    <h3>成功！</h3>
    <p>这里使用w3-round-large。</p>
</div>
<div class="w3-panel w3-green w3-round-xxlarge">
    <h3>成功！</h3>
    <p>这里使用w3-round-xxlarge。</p>
</div>
<div class="w3-panel w3-pale-green w3-round w3-border">
    <h3>成功！</h3>
    <p>这里使用了w3-round。</p>
</div>
<div class="w3-panel w3-pale-green w3-round-large w3-border">
    <h3>成功！</h3>
    <p>这里使用w3-round-large。</p>
 
 
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运行结果
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