Can't change the affected class

Design help Animations & Interactions
1

Hi! I wan’t to make an animation and affect three H4-some classes that I have here, but when I change the class, it changes for every action on animation

https://preview.webflow.com/preview/levannta-7210b0-68c36c2ce6d9c8fcd031c47?utm_medium=preview_link&utm_source=designer&utm_content=levannta-7210b0-68c36c2ce6d9c8fcd031c47&preview=ab57905dbbe3ee518e98d9fd42770ad6&workflow=preview