Safari X and Y positioning bug in GSAP Posted June 6, 2016 hmm, hard to tell by just seeing that code. It looks fine. I'm sure that once you are able to produce a reduced test case that we can test and edit we will be able to diagnose the problem. I suspect there is some CSS somewhere perhaps that is causing a problem, but impossible to tell. Here are some tips for creating a demo: http://greensock.com/forums/topic/9002-read-this-first-how-to-create-a-codepen-demo/ Please keep it as as simple as possible so that we can quickly isolate the issue. Thanks! You can check my test webpage at http://luck.hounddev.com There's a problem with ship in first scene, with balloon in in 5th and with the car in the last scene.