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You can create CSS-only scroll indicators without new APIs 🤙 .scroller { background: var(--cover) local, var(--shadow) scroll; } background-attachment: local makes a background scroll with its content. Use that to cover a shadow ⭐️ Neat little trick! 🫶
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Good write up on what's happening in this demo in this post from 2012! 🤙
I still recall this trick from @LeaVerou
@LeaVerou That's a good write up. Thanks for sharing 🙏 Before I even started playing with CSS. That's a testament to the browser support! 😅
something i added to it, column captions. definitely could be delivered smoother😅
Do you have a link to the codepen? 🙏
Brother a course from you would be awesome, literally guiding us from the ground up, starting from basic variables to a more complex way of thinking, I'm pretty sure you can completely change the way we think and do things in CSS (or animations in general).
@officialnilaxy
@realHerrSammy @InFeCtedEv_
nice little trick!
u'r real CSS Master
![CSS Trick! ⚡️ You can use scroll-driven animation with background-attachment to create a dynamic glowing card scroller without JS 🔥 section { animation:vibe; animation-timeline:--list; } @keyframes vibe { to{--hue:320;}} .glow {background: hsl(var(--hue) 80% 50%);} Here's how! 🤙 You can use the background-attachment trick used in other glow card demos 😎 article { background-attachment: fixed; } The difference here is that you aren't going to update the fixed background position with your pointer this time. It can remain fixed. The magic part is that as you scroll, the background will leave the card that's leaving and enter the card that's entering ✨ For the extra background glow, you can use a fixed pseudo element on the list container itself 💪 Once that's in place, you're only task is to change the color of the background as you scroll 🤔 Create a custom property declaration for the --hue @property --base { inherits: true; syntax: ' '; initial-value: 0; } Then create an animation that updates this value @keyframes accent { to { --hue: 320; }} The last piece is hooking it up to scroll and there is a little trick in here 👀 First, you need an inline scroll-timeline on the list ul { scroll-timeline: --list inline; } Then you can use timeline-scope to hoist that scroll-timeline up so a parent can use it. You then animate the custom property on this element and let the value cascade down to the places that need it 🔥 section { timeline-scope: --list; animation: accent both linear; animation-timeline: --list; } For example, the glow uses the --hue this way [data-glow] { background-image: radial-gradient( 150px 150px at 50% 50%, hsl(var(--hue) 100% 70% / 0.25), transparent ); } Lastly, scroll-snap is optional of course but plays nice with the scroll-driven animation demos ✨ The key for that is ul { scroll-snap-type: x mandatory; } li { scroll-snap-align: center; } That's it! Pretty fun trick to play with! 🤓 Any questions, let me know! Should we add it to the video walkthrough list? CodePen.IO link below! 👇](https://image.24vids.com/tw-1738039148672426164/ext_tw_video_thumb/1738032359302156288/pu/img/s8BufTPl8FRWOouG.jpg)
![CSS Tip! 🚥 You can create these trending expanding scroll indicators with scroll-driven animations and flex 🤙 .indicator { animation: grow; animation-range: contain calc(50% - var(--size)...; animation-timeline: var(--card); } @keyframes grow { 50% { flex: 3; }} What's the trick? Put the indicators in a container using flex layout and set a width larger than the number of indicators 😉 .indicators { aspect-ratio: 7 / 1; display: flex; } Importantly, set no gap 🤏 To mimic the gap set a transparent border on each indicator and set the background using padding-box .indicator { background: linear-gradient(#fff, #fff) padding-box; border-radius: 50px; border: 4px solid transparent; } Now for the animation. You want to create a view-timeline for each card that moves across 🤙 li:nth-of-type(1) { view-timeline: --one inline; } li:nth-of-type(2) { view-timeline: --two inline; } Make sure they use the inline axis too! The trick is hoisting these view-timeline so the indicators can use them with timeline-scope 👀 .track { timeline-scope: --one, --two, ...; } All that's left is for you to create the animation piece using some calc with the card size ⚡️ .indicator { --size: calc(var(--card-width) * 0.9); animation: grow both linear; animation-range: contain calc(50% - var(--size)) contain calc(50% + var(--size)); } .indicator:nth-of-type(1) { animation-timeline: --one; } .indicator:nth-of-type(2) { animation-timeline: --two; } @keyframes grow { 50% { flex: 3; }} And there you have it, responsive scroll indicators using CSS scroll-driven animations 😎 Sprinkle a little JavaScript to make them clickable and scroll the the right card ✨ const shift = (event) => { if (event.target.tagName === "BUTTON") { const index = [...event.target.parentNode.children].indexOf(event.target); const item = document.querySelector(`li:nth-of-type(${index + 1})`); item.scrollIntoView({ behavior: "smooth", inline: "center" }); } }; As always, any questions or suggestions, let me know. I've put a JavaScript fallback in to use GSAP in browsers that don't have scroll-driven animations 🫶 CodePen.IO link below! 👇](https://image.24vids.com/tw-1743737760773705824/ext_tw_video_thumb/1743734045748641792/pu/img/nFQ1z9S-iN4AY8SN.jpg)
