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zIndex issue from scaling

Learning test
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Warning: Please note

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 Some information, especially the syntax, may be out of date for GSAP 3.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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EDIT: Oops guys, after the z-index issue first occurred, I have been moving things around and causing this issue to deepen, after deleting everything and starting over, I realised it works already as long as I don't scale from the top element but the inner child! =x Perhaps the admin can help me close/delete this thread? Sorry for the trouble guys!

Hi guys,


I've searched the forum and found 1-2 similar topics, but I don't really understand the solutions...
So I thought maybe I'll try to ask this question again. Really sorry about this!


So I have a dropdown menu that has a z-index of 10 (so it's above everything) and visibility of hidden.

When I click on a hamburger icon, I used TweenLite to scale it up from 0 to 1 and set the autoAlpha to 1.

This caused the z-index to reset to 0 and thus the dropdown menu appears behind other elements on my page.

I have tried including zIndex into my tween, but even if the element.style shows it's z-index 10, the computed z-index stays at 0.

I have also tried using clearProps mentioned in one of the previous threads, but it didn't seem to affect anything too. =(


I understand from the other thread that scaling (transform matrix) will automatically reset the z-index (which is what is causing this issue I'm guessing), but doesn't tweening the zIndex help? Do I have to put my menu at the bottom of my body of every page to make this work?

Thanks in advance again guys!

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It would be very helpful if you could take a few minutes to set up a reduced test case as explained here: 



One option might be putting your menu inside a parent container div with the higher z-index. Once we can see a small demo we will be better suited to provide a solution that works in your particular scenario.

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Hi Carl,


Thanks for the reply. Yeaps, after deleting and resetting everything, I realised that if I wrap the div inside a container and deal with it, it works already! I guess in trying to solve it, I had written too many things and messed it even further, that's why it got really confusing in the end. Sorry for the trouble!

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