Camera looking down

I've been looking at answers on here and through Google on how to get the camera to be looking down. My problem is I can't seem to get it right. I add a plane that is holding my game board. Then I have the camera rotated -90 on the y so it will be looking down. Am I rotating it on the wrong axis? I'm trying to make the camera look down at the board and not straight towards the board. (I also turned on orthographic view).

You want to turn it on either the X or the Z axis. Did you even.. try? o.O