Quick scenario: I have a menu that has black anchors by default and when I hover over a link it changes to white using :hover, standard enough stuff. How though would I then change all the other links to darkgray whilst the link that is being hovered over stay white?
I've had a look through http://www.w3schools.com/css/css_pseudo_classes.asp as my guess is it's one of these, however the descriptions don't seem to match what I'm after.