w3css-tbg83dx7_2 在线代码实例

实例代码( Tip: 登录后体验更佳 )
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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>边框颜色</h2>
    <div class="w3-panel w3-border w3-border-red">
        <p>我有红色边框。</p>
    </div>
    <div class="w3-panel w3-border-left w3-border-blue">
        <p>我有一个蓝色的左边框。</p>
    </div>
    <div class="w3-panel w3-border-top w3-border-bottom w3-border-green">
        <p>我有一个绿色的顶部和底部边框。</p>
    </div>
    <div class="w3-panel w3-border-left w3-pale-red w3-border-red">
        <p>我有一个红色的左边框和一个浅红色的背景色。</p>
    </div>
</div>
</body>
</html>
 
 
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运行结果
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