First of all i want to say that GSAP is awesome! Pleasuring to use it, don't know now how things will be done without it..
So the problem where i had stuck is next:
First imagine page, with content, images, svg elements, and they are animated on start by css, let's say - "initial sliding animation".
Then we have next:
We have two visual blocks.
On click the block expands => "Triangle button" become visible. => Content inside it changes and animates => Content under it becomes visible, and we can scroll the page. ("Triang