W3School TIY Editor
W3School 在线教程
改变方向
暗黑模式
运行代码
<!DOCTYPE html> <html> <body> <footer> <p>Posted by: Hege Refsnes</p> <p>Contact information: <a href="mailto:someone@example.com"> someone@example.com</a>.</p> </footer> </body> </html>