pinned element hops down suddenly and the pinned element should stay pinned till the bottom of the div reaches the bottom of pinned element. Mine is misbehaving!!

[Sulochan]

import React, { useEffect, useRef } from 'react';

import './services.css';

import { gsap } from 'gsap/all';

import { ScrollTrigger } from 'gsap/all';

gsap.registerPlugin(ScrollTrigger);

const Services2 = () => {

const staticRef = useRef(null);

const scrollRef = useRef(null);

 

const componentRef = useRef(null);

let componentHeight;

 

useEffect(() => {

// Access the height of the component using ref

componentHeight = componentRef.current.clientHeight;

console.log('Component Height:', componentHeight);

 

// You can perform further actions with the height, such as updating state or triggering animations

}, []);

 

useEffect(() => {

const staticPart = staticRef.current;

const scrollPart = scrollRef.current;

 

gsap.timeline({

scrollTrigger: {

trigger: scrollPart,

start: 'top 75px',

end: `bottom ${componentHeight}`,

pin: staticPart,

scrub: true,

onEnter: () => console.log('Pin starts'),

onLeave: () => console.log('Pin ends'),

},

});

}, []);

return (

<div>

<div

style={{

display: 'flex',

justifyContent: 'space-evenly',

margin: '10px',

}}

>

<div ref={componentRef} style={{ width: '40%' }}>

<div style={{ width: '100%', height: '400px' }} ref={staticRef}>

hi, my name is yosh

</div>

</div>

<div style={{ width: '40%' }} ref={scrollRef}>

<div style={{ height: '400px' }}>yes</div>

<div style={{ height: '400px' }}>yes</div>

<div style={{ height: '400px' }}>yes</div>

<div style={{ height: '400px' }}>yes</div>

</div>

</div>

</div>

);

};

 

export default Services2;

[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 dependancies 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. ✅

[GreenSock]

It looks to me like you're not doing proper cleanup. Remember that in React 18+, your useEffect()/useLayoutEffect() will get called TWICE in strict mode, meaning you might be creating conflicting/competing animations/ScrollTriggers. 

 

I'd strongly recommend using the new useGSAP() hook which is a drop-in replacement for useEffect()/useLayoutEffect() and will automate that cleanup for you. Make sure you read https://gsap.com/react too.