菜鸟教程在线编辑器

 
                <!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Tailwind CSS 阴影效果展示</title>
<script src="https://cdn.tailwindcss.com"></script>
</head>
<body class="bg-gray-50 p-8">

<div class="w-20 h-20 bg-purple-500 hover:w-40 transition-all duration-300 ease-in-out">
</div>

</body>
</html>
              