源代码:
<!DOCTYPE html> <html> <head> <style> [title=w3cschool] { border:5px solid green; } </style> </head> <body> <h2>Will apply to:</h2> <img title="w3cschool" src="/statics/images/w3c/logo.png" width="247 height="48" /> <br> <a title="w3cschool" href="http://wfuyu.com">w3cschool</a> <hr> <h2>Will not apply to:</h2> <p title="greeting">Hi!</p> <a class="w3cschool" href="http://wfuyu.com">w3cschool</a> </body> </html>
运行结果：