divide a site into two equal parts and have different scroll speeds

[knozz]

Hi, I have a slightly specific request. I am in art school and I do front end and for my exam I would like to divide my site into two parts which are not the same length and which would scroll at different speeds to finish their scroll at the same time. I have very little time left for my exam, that's why I'm taking the liberty of asking you. I was able to find a post on the forum that talked about this (https://gsap.com/community/forums/topic/20763-how-to-make-blocks-of-different-heights-scroll-at-different -speeds/) but I couldn't reproduce it

[Rodrigo]

Hi @knozz and welcome to the GSAP Forums!

 

Maybe something like this demo:

See the Pen vYjqXLm by GreenSock (@GreenSock) on CodePen

 

Hopefully this helps.

Happy Tweening!

[knozz]

hi thank you for your answer, that's not quite what I had in mind I divided my page into two equal parts parte like 2 div and they don't have the same height but I want their scroll to end at the same time
 

[Rodrigo]

Hi,

 

Actually in the demo the columns have a different height, the thing is that they are being animated in opposite directions.

 

Here is a fork of the same demo with both columns animating in the same direction:

See the Pen mdgoKVm by GreenSock (@GreenSock) on CodePen

 

Finally this is most about the calculations needed to move each column on a given direction.

 

Hopefully this clear things up.

Happy Tweening!

[knozz]

yes thank you very much that's exactly what I need. I tried to reproduce what you did but I don't have access to the entire css

[Rodrigo]

1 hour ago, knozz said:

I tried to reproduce what you did but I don't have access to the entire css

That demo is using Tailwind CSS

https://tailwindcss.com/

[knozz]

hey i have done with tailwindcss and i try to run your code on my machine and he dosent work. what im doing wrong ? 

 

[GSAP Helper]

Without a minimal demo, it's very difficult to troubleshoot; the issue could be caused by CSS, markup, a third party library, a 3rd party script, etc. Would you please provide a very simple CodePen or Stackblitz that illustrates the issue? 

 

Please don't include your whole project. Just some colored <div> elements and the GSAP code is best. See if you can recreate the issue with as few dependencies as possible. Start minimal and then incrementally add code bit by bit until it breaks. Usually people solve their own issues during this process! If not, at least we have a reduced test case which greatly increases your chances of getting a relevant answer.

 

See the Pen aYYOdN by GreenSock (@GreenSock) on CodePen

that loads all the plugins. Just click "fork" at the bottom right and make your minimal demo: 

 

Using a framework/library like React, Vue, Next, etc.? 

CodePen isn't always ideal for these tools, so here are some Stackblitz starter templates that you can fork and import the gsap-trial NPM package for using any of the bonus plugins: 

• React (please read this article!)
• Next
• Svelte
• Sveltekit
• Vue
• Nuxt

 

Please share the StackBlitz link directly to the file in question (where you've put the GSAP code) so we don't need to hunt through all the files. 

 

Once we see an isolated demo, we'll do our best to jump in and help with your GSAP-specific questions. ✅

[knozz]

hi I did the ccode pen with as little detail as possible and it still doesn't work 

 

See the Pen dyLLMoG by KnozZ-the-scripter (@KnozZ-the-scripter) on CodePen

[Rodrigo]

Hi,

 

Basically your ScrollTrigger import is wrong:

 

// Wrong
import scrolltrigger from "https://esm.sh/scrolltrigger";

// Right
import ScrollTrigger from "https://esm.sh/gsap/ScrollTrigger";

ScrollTrigger  is part of the GSAP package, not an individual separate package and is PascalCased, you had it in lower case.

 

Hopefully this helps.

Happy Tweening!

[knozz]

yo this is working huge thanks for the help !!