Storyline math game

Hello,

A client asked me to build him a math game. I began to create the game, but I'm not sure I can answer to all his demands.

1) He wants when you click on the right answer, the box turns green. He wants the box remains green all other slides (10 slides).
2) He wants when you click on the wrong answer, the box flashes red twice and we move to the next slide.

I tried to play with the states, but it does not work very well.
Do you have a Storyline model that could help me?

Thank you in advance!
Stéphanie

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