CODE EXAMPLE FOR HTML

html video

<div id='home-video' class="dl-neon-vid"><center>
    <video playsinline loop muted autoplay width="100%">
                <source src="video-link"  />
            </video></center>
    </div>

  <!-- script to pause ALL VIDEOS ON THE HOME PAGE when out of viewport -->

<script>
    let options = {
        root: null,
        rootMargin:'0px',
        threshold:1.0
    };
    let callback = (entries, observer)=>{
        entries.forEach(entry => {
            if(entry.target.id == 'home-video')
            {
                if(entry.isIntersecting){
                    entry.target.play();
                }
                else{
                    entry.target.pause();
                }
            }
        });
    }
let observer = new IntersectionObserver(callback, options);
observer.observe(document.querySelector('#home-video'));

</script>