How keeping showed after clic

Hello all,

I have a problem with an animation by clic (here the link) : Sans titre

When cliking one of the 5 items, the animation starts correctly. But when mouse out or mouse move the animation disappear.

I need it to stay on screen and disappear only when clickin another item.

I tried mouseout mouseleave ec. without any success.

Edge version used : 2015

Thanks for helping

Regards

Rodolphe