https://www.douban.com/note/330647290/
http://www.runoob.com/coder-learn-path
http://bbs.csdn.net/topics/390681167
http://jingyan.baidu.com/article/ca2d939d327edaeb6c31ce89.html
http://wenku.baidu.com/link?url=MdcKyzM3vILYW-Gg4maR_VlstT9-zEwmHC2AB7pkQs_Pgb83mQ2O1Vffo7qyYSxuttfB7ZLcqZTe4G_fi9RLSTS4OngFrNSDebRMjQbTs2i
“君子生非异也，善假于物也”多借鉴，善用fireubug,分析查看源码，页面布局要避免元素关系混乱，css要从整体出发，“自顶向下，逐步细化”，尽量避免盒子的浮动和错位。
http://www.aseoe.com/show-41-582-1.html