How to create animated buttons in Storyline

This E-Learning Challenge was about animated buttons.  For mine, I started with a shape and duplicated it four times with each shape a bit smaller.  Nested them all together and gave them different colors.

Then I followed the process to animate the shapes but I animated each of the shapes within the shape.  This plays during hover.

I created a visited state and then once all the buttons were visited, I had a little party.