* = /* *= wild card = universal 通用 ! */

 *  = /*  *= wild card = universal 通用   ! */

*  *= wild card = universal 通用   !

 http://www.codecademy.com/courses/web-beginner-en-6merh/0/1?curriculum_id=50579fb998b470000202dc8b

http://www.codecademy.com/courses/web-beginner-en-6merh/0/1?curriculum_id=50579fb998b470000202dc8b

CSS3   ::   border 可同時指示   ?px    dashed , color