<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>基本骨架</title> </head> <body> <!-- 基本骨架 --> <!-- 我是代码注释 --> <h1>我是一级标题</h1> <h2>我是二级标题</h2> <h3>我是三级标题</h3> <h4>我是四级标题</h4> <h5>我是五级标题</h5> <h6>我是六级标题</h6> <p>我是<hr/>歌<br/>谣</p> </body> </html>
