W3School TIY
编辑您的代码：
<!DOCTYPE html> <html> <head> <style> a:visited { background-color:yellow; } </style> </head> <body> <a href="../index.htm">W3Sschool</a> <a href="http://www.google.com/">Google</a> <a href="http://www.wikipedia.org/">Wikipedia</a> <p><b>注释：</b>:visited 选择器为已被访问的链接设置样式。</p> </body> </html>
查看结果: