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- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="utf-8">
- <title>菜鸟教程(runoob.com)</title>
- <style>
- .center {
- margin: auto;
- width: 60%;
- border: 3px solid #73AD21;
- padding: 10px;
- }
- </style>
- </head>
- <body>
- <h2>元素居中对齐</h2>
- <p>水平居中块级元素 (如 div), 可以使用 margin: auto;</p>
- <div class="center" style="text-align: center">
-
-
- <span>你好</span>
- </div>
- </body>
- </html>
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