Firebug shows a class applied to my tag twice

问题

When I'm trying to check my CSS applied to, I see a class is applied twice from a same class like the picture. what's wrong?

回答1:

It looks like you may have linked to General.css twice in your HTML code.

来源：https://stackoverflow.com/questions/21202466/firebug-shows-a-class-applied-to-my-tag-twice