How to chagne the Copyright text color?

[must]

The problem is that copyright text color and the background are dark. So, we can hardly notice it.
After all, I want to change the copytight text color to the brightest one. How can I do that?

P.S.: sorry for my pure language 

[Nibbler]

Change the .footer class in your css file.

[must]

Thank you very mutch!