I'm creating a Keynote presentation.
I have a slide with two overlapping images at the center of the slide. What I want to do is make one of the two disappear when the other appears. This should be done in one slide.
I've tried to add "build" effects or playing around with the orders, but I guess this may not be the right way to do it. I've also looked around on the web, but I've not found anything which really addresses my problem.