<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <!-- div 页面布局当中最常用的容器 --> <div>hello</div> <div> <!-- 标签可以实现嵌套 --> <div> <div></div> </div> <div></div> </div> <div></div> <div></div> </body> </html>
