[Javascript] separating structure, style, and behavior

[Terry Riegel]

Can anyone explain this to me.


#localnav td p,
#localnav td a:link,
#localnav td a:visited {padding-right: 10px; display: block; color: 
#000000; text-decoration: none;}
#localnav {background-color: #ffffff;}


What does the comma after p and after link mean?

Terry