try_w3examples_220 在线代码实例

实例代码( Tip: 登录后体验更佳 )
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>
<div class="w3-container">
    <h2>下拉段落</h2>
    <p>将鼠标移到段落上以打开下拉菜单内容。</p>
    <p class="w3-dropdown-hover">将鼠标悬停在我身上！
        <span class="w3-dropdown-content w3-green w3-padding">你好 W3CSchool!</span>
    </p>
</div>
</body>
</html>
 
 
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运行结果
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