Html
Css
Demo
运行代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <style type="text/css"> a[href="http://www.w3school.com.cn/"][title="W3School"] { color: red; } </style> </head> <body> <h1>可以应用样式：</h1> <a href="http://www.w3school.com.cn/" title="W3School">W3School</a> <hr /> <h1>无法应用样式：</h1> <a href="http://w3school.com.cn">W3School</a> </body> </html>