@Daniel Imms: Tags are meant to describe the question, not the answers. Since it isn't immediately obvious from the question that the problem lies in selector specificity it's not appropriate to force the tags into the question. It is also not necessary to fill in all 5 tags on every question - tags like [hover] aren't very effective here
I understand all of BoltClock's points except for the specificity tag. After reading the question it is pretty obvious that the issue with his styles is regarding selector specificity. So wouldn't it be useful to tag it as such even though the asker of the question wasn't aware what his issue was being caused by?
Of course I know that BoltClock is a moderator so he would probably know best but I wanted to clarify as the situation arose again with this question, I think it's an ideal candidate for the hoisting tag.