段永平 · 2012-11-17 08:01:26 · 网易博客
原文：http://nteswjq.blog.163.com/blog/static/1269981201210178126464/
正文
"I violated the Noah rule: Predicting rain doesn't count; building arks does."
Attogear QuickQuote Apps for iPhone/iPod Touch - http://www.attogear.com 发自我的 iPhone
所以不能用margin。