try_w3examples_170 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>
<form class="w3-container">
    <h2>动画输入</h2>
    <p>w3-animate-input类将输入的宽度动画化为100％。单击下面的输入以查看效果：</p>
    <input class="w3-input w3-animate-input" type="text" style="width:135px"><br>
    <input class="w3-input w3-border w3-animate-input" type="text" style="width:30%">
</form>
</body>
</html>
 
 
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