CSS - class applies on click [resolved]

[Acidic]

I would like to apply a certain class to an object only when the object has been clicked on. I know you can do:

#Obj:hover

Which will apply that part of CSS to the object when the mouse is hovering over the object. Is there an equivalent to when you've clicked the object or do I have to write JavaScript to do the trick?

[vbNeo]

have you tried #Obj:active ?

[Acidic]

That doesn't work exactly how I want it. But I've managed to make it in JavaScript now anyways. It's not quite a neat, but it works.
Thanks anyway.

edit: I'd never known about that action, thanks for pointing it out to me.