![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
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<!DOCTYPE html> <html> <head> <title>fieldset</title> </head> <body> <fieldset><legend align="middle"><h3>边框测试</h3></legend></fieldset> </body> </html>
点击 "运行实例" 按钮查看在线实例
