css 实现 round corner

 1. 利用4每个div左右的margin分别为5,3,2,1,合在一起组成上面div的corner,下面为1,2,4,5

 参见：http://webstudio.gordw.com/roundcorner.html

http://www.tjkdesign.com/articles/roundbox.asp

http://www.tjkdesign.com/articles/roundbox.asp

 

2.利用background:url("generate_corder.php")来实现。利用php画图函数来生成cornder.

  参见：http://www.neuroticweb.com/recursos/css-rounded-box/index.php?color=0066FF&fondo=66FF99

 

 

 

参考：http://www.cssjuice.com/25-rounded-corners-techniques-with-css/