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Updating hover on tween

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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 Some information, especially the syntax, may be out of date for GSAP 3.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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The red box in this example has a hover effect on the css.

See the Pen aHepz by anon (@anon) on CodePen


The thing is this only works if the mouse is moving on the red box; not when thw box itself moves under the mousepointer (leave the mouse in the path of the box).

This is probably not a Tweenlite issue but a js question.


How do I fix that?



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Hello Torben, and Welecome to the GreenSock Forum!


I am not seeing any hover effect happening on your codepen example. Also I do not see any CSS :hover pseudo classes or any JavaScript hover events either.


Maybe you forgot to add it your codepen example?



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I think this is what he ment:


See the Pen oljqA by bassta (@bassta) on CodePen


I added the :hover pseudo-class and also made the tween slower, so it is easier for testing. I comfirm the bug, but I think it has nothing to do with GSAP, it is a browser issue. 

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Thank you Chrysto - don't know what happened to my Codepen.

And yes that is what I meant

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Interesting bug, currently I can only test on Webkit browsers, on Mac OSX, but seems like with different tweening engines ( jQuery animate() for example ) , with different properties animated ( left, margin-left etc. ) this happens. 

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I tested on PC - Windows 64-bit

  • Firefox 30 - pseudo :hover does trigger
  • IE11 - pseudo :hover does NOT trigger
  • Chrome 35 - pseudo :hover does NOT trigger


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