Query regarding widget disappearing upon mouse hover

Hi, I am trying to recreate this effect of hovering on an element and it disappearing on hover and staying disappeared. https://illuminating-radioactivity.com/ When I put animation on my widget and turn it from 100 to 0 it does disappear on mouse hover but appears again once I remove the mouse hover. How do I stop that from happening? Please advise. I am using multiple PNG images. I want to create the exact same thing as the website I linked. I am on free version of readymag. Thank you.