Validation Warning

[crazyheffro]

My css validates, but there are 2 background color warnings that I don't understand. Please shed some light on what I've got wrong.

http://jigsaw.w3.org/css-validator/validator?uri=http%3A%2F%2F138.67.44.139%2FRMAG%2Flayout.css&warning=1&profile=css2

[AdamGundry]

This warning appears because you have specified a background but not foreground colour; this is not really a problem as long as the colour is specified elsewhere. It is still valid CSS.

Adam