51help TIY
码：
<html> <head> <style type="text/css"> html {color:black;} p {color:blue;} h2 {color:silver;} </style> </head> <body> <h1>这是 heading 1</h1> <h2>这是 heading 2</h2> <p></p> </body> </html>
查看结果: