<ul> <li>Coffee</li> <li>Milk</li> </ul>
ul uordered list
<ol> <li>Coffee</li> <li>Milk</li> </ol>
ol ordered list
<head> <link rel="stylesheet" type="text/css" href="theme.css"> </head>
rel relation
原文：http://www.cnblogs.com/lyndon-chen/p/3583692.html