BootWiki教程网
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>BootWiki 教程网</title> <style> [title=runoob] { border:5px solid green; } </style> </head> <body> <h2>将适用:</h2> <img height="50" src="logo.png" title="外唐教程网" width="270" /> <br> <a href="http://www.waitang.com/" title="外唐教程">waitang</a> <hr> <h2>将不适用:</h2> <p title="greeting">Hi!</p> <a class="外唐教程网" href="http://www.waitang.com/">waitang</a> </body> </html>
运行结果