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HELP - Works in firefox but not chrome

Go to solution Solved by Diaco,

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This thread was started before GSAP 3 was released. Some information, especially the syntax, may be out of date for GSAP 3. Please see the GSAP 3 migration guide and release notes for more information about how to update the code to GSAP 3's syntax. 

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I'm trying to tween an animation controlled with scrolling. Looking for some help, it works fine in FireFox but not Google Chrome. Wondering if someone can help explain whats going on.


See the Pen gPRNQX by SaintDominic138 (@SaintDominic138) on CodePen

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It probably has to do with setting the right css property to 0. Here, I'm setting the x property in Javascript and then animating from there back to 0.


See the Pen qbjezo by sgorneau (@sgorneau) on CodePen


EDIT: And I've done it again ... sorry Diaco ... didn't see your post until I submitted.

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As a rule of thumb you should never animate the CSS position offset properties.. top, bottom, right, or left


You should use x and y instead so you can trigger hardware acceleration and sub-pixel rendering.


So you can tween x instead of left for better performance and to get that GSAP buttery smoothness :)


See this article by GreenSock's Mighty Jack:




And this other article:





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Hello, try :


$(window).scroll(function() {
var offset = $(this).scrollTop();
if( offset >= 100 ){
var tl = new TimelineLite;
tl.to(".red", 1, {left:00} );
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