Hey @Farouq - welcome to the forums.
You could either set it up via applying
scroller: '.world'
to each of your ScrollTriggers, or to all of them beforehand via .defaults like so
ScrollTrigger.defaults({
scroller: '.world',
});
https://codepen.io/akapowl/pen/oNLrVQz
This is from the ScrollTrigger-Docs:
scroller
String | Element - By default, the scroller is the viewport itself, but if you'd like to add a ScrollTrigger to a scrollable <div>, for example, just define that as the scr