Guitouski

Hello, I am stuck and I would appreciate so much your help. I would like to create a pop-up coming from the top (with Gsap.From), staying in place at the center of the page for 2/3 seconds (I don't how ?) and coming back from the original place ( using reverse, I guess). But I tried and it didn't work. Would you have some idea please? (PS: I am using this in the IDE Low-code OUTSYSTEMS) Thank you in advance.