<!DOCTYPE html> <html> <head> <style> a:link,a:visited { display:block; font-weight:bold; font-size:14px; font-family:Verdana, Arial, Helvetica, sans-serif; color:#FFFFFF; background-color:#98bf21; width:120px; text-align:center; padding:4px; text-decoration:none; } a:hover,a:active { background-color:#7A991A; } </style> </head> <body> <a href="http://www.cnblogs.com/penger/" target="_blank">朋二</a> </body> </html>
padding:4px; 设置4个内边距都是4px
display: block;就是把不是块级的标签转换成块级标签 可以修改大小
原文：http://www.cnblogs.com/penger/p/3900194.html