W3School TIY
编辑您的代码：
<!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"> [title] { color:red; } </style> </head> <body> <h1>可以应用样式：</h1> <h2 title="Hello world">Hello world</h2> <a title="W3School" href="../index.htm" tppabs="http://w3c.80zhan.com/">W3School</a> <hr /> <h1>无法应用样式：</h1> <h2>Hello world</h2> <a href="../index.htm" tppabs="http://w3c.80zhan.com/">W3School</a> </body> </html>
查看结果: