W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
运行代码
<html> <head> <style type="text/css"> h1 {color:#FF0000;} p {color:#0000FF;} body {background-color:#FFEFD6;} </style> <style type="text/css" media="print"> h1 {color:#000000;} p {color:#000000;} body {background-color:#FFFFFF;} </style> </head> <body> <h1>Header 1</h1> <p>A paragraph.</p> </body> </html>