Sorry if this is a logic problem here. I want to show only "text 1" once it entered scroller area and keep "text 2" waited until "text 1" leaves the scroller area.  When "text 1" leaves the scroller area, I want "text 2" to enter the scroller area at the same time. How can I achieve this? See the Pen KKmyjNp by ynsmrsk (@ynsmrsk) on CodePen