Hello and welcome to the forums @AkhilRaja.   Since you are not actually scrolling horizontally but only just faking horizontal scroll-behaviour with a tween on vertical scroll, you can not use the horizontal property of ScrollTrigger and have to calculate the start and end yourself.   Here is the demo from the demos-section showcasing that   See the Pen ZEpNLZa by GreenSock (@GreenSock) on CodePen     Here you'll find
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