How to make only one pic shows at a time

Hi

here my site http://clearmobile.webflow.com/
i got 4 set picture to show up one by one,not simultaneously by using scrolling trigger.
could someone help me?

There is an offset you can set on the OnScroll trigger. You could set a first interaction to display one image element starting at OnScroll 10% and disappear OnScroll 20%, then another interaction would do the same from 20 to 30 etc…