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CSS Tip! 🤙 You can create this magnetic :hover effect with CSS anchor positioning, :has, and zero JS 🔥 article { anchor-name: --develop; } ul:has(li:hover) { --anchor: --develop; } ul::after { inset: anchor(var(--anchor) top) anchor(var(--anchor) right) ... ; } How do you keep it clean when entering/exiting the list?... show more
729,560 Aufrufe • vor 2 Jahren •via X (Twitter)
10 Kommentare
Here's that @CodePen link! 🚀 Should get something good in all browsers 🫶 That's the joy of progressive enhancement!
Fun fact: Transitioning CSS anchor positioning wasn't going to work 🥲 But, some early demos I put together for you helped change that 🙏 The transitioning regressed in a Chome Canary update and those "fun" demos helped solve it 🔥
When CSS anchor-default shipped in Canary, another fun demo idea prompted whether we could use that to transition anchors 🤔 And that raised another Chromium issue 👇 The gist of the story is: "Building all sorts of different things helps the platform"
And this was the demo that prompted that whole CSS exploration in the first place 😅 Jus' wanted to make a bear paw move between the inputs because you can ʕノ•ᴥ•ʔノ ︵ ┻━┻
🔥
Any ideas how to accomplish this
How do you want it to work? On scroll? On click? Can definitely throw something together for you 🤙
Made something like that using svelte.
Have you seen the one @KevinJPowell did where you can see the gutters on the grid? Pretty sick
@KevinJPowell Not sure I have. Someone tagged me in the quoted post and it reminded me of transitioning anchor position And that reminded me of an issue I raised from working with the spec last year 🤓
![Future CSS Tip! 🔮 You could combine anchor positioning + :has to create this kinda iPad style follow effect ✨ [href=blog]{anchor-name:--bl;} :root:has([href=blog]:hover){--a: --bl;} .cursor{left:anchor(var(--a) left);} You can transition anchors! 😎 CodePen.IO link below! 👇](https://image.24vids.com/tw-1636420648535769107/ext_tw_video_thumb/1636419242886152232/pu/img/fu92DyOAZ6bLZ3qp.jpg)
![CSS in 2024 🤯 You can create a range slider with updating value tooltip and color changing track without using any JavaScript 🤯 ::-webkit-slider-thumb{ view-timeline: --thumb inline; } Scroll animation on the slider thumb that animates a number between the "min" and "max" of the range 😅 @property --value { syntax: ' '; } @keyframes sync { to { --value: 100; }} Tie that up to the contain animation-range ⚡️ .control { animation: sync both linear reverse; animation-timeline: --thumb; animation-range: contain; } Hoist the view timeline so the tooltip can use the value too! :root { timeline-scope: --thumb; } Then use it in the counter which goes in the tooltip 😇 .tooltip { counter-reset: val var(--value); } .tooltip::after { content: counter(val); } Then the accent color is based on the value too 🎨 [type=range] { accent-color: hsl(var(--value) 90% 65%); } The magic from the quoted post is using anchor positioning on the range thumb to position that tooltip 👏 Never thought of that when working on the spec for this API. This API lets you tether elements to other elements. Using the pseudo is a clever move! ::-webkit-slider-thumb { anchor-name: --thumb; } .tooltip { position: absolute; anchor-default: --thumb; left: anchor(50%); bottom: calc(anchor(top) + 25%); } The last piece is the little bounce transition... OK. I used a line or two of JavaScript for that 🙏😬 const updateDelta = ({ movementX }) => { document.documentElement.style.setProperty('--delta-x', movementX) } document.body.addEventListener('pointermove', updateDelta) But only so you can pass the movement delta to CSS and then reset the position with linear() to get that bouncy transition 😎 .hint { rotate: calc(clamp(-60, var(--delta-x) * -1, 60) * 1deg); transition: rotate 1s linear( 0, 0.2178 2.1%, 1.1144 8.49%, ... ); } Should probably do a video on this one. Lots of little tricks to break down with it for sure! 💯 As always, any questions, let me know! Also, this one only works in Chrome Canary with the Experimental Web Platform Features flag enabled ✅ This one almost feels like rocket science ha 🚀 CodePen.IO link below! 👇](https://image.24vids.com/tw-1742951071473967117/ext_tw_video_thumb/1742947397649506306/pu/img/A1Su3thQr8ZQBvdt.jpg)
![CSS Trick 🧲 You can create magnetic links with the power of custom properties and some JavaScript 💪 a { translate: calc(clamp(-1, var(--x), 1) * var(--pad-x)) ...; transition: translate var(--s, 1s) var(--ease, var(--elastic)); } a:hover { --s: 0s; } The trick here is to pad out the list items wrapping your links and use that as a translation limit 🛑 Start by using some JavaScript to calculate a value between -1 and 1 for both the x/y axis on pointermove for each list item, not the link! 🔗 If your pointer was at the center of the item, you'd get [0,0]. If it was in the top right, you'd get [1,-1] ☝️ It's worth checking out the JavaScript snippet to see how the mapping function works. Essentially, you create a function that when given a value between two bounds, will give you a mapped value back 🤙 const mapX = mapRange( item.offsetWidth * -0.5, item.offsetWidth * 0.5, 1, -1 ) Then, on pointermove, you plug the pointer position in to get the value back out and pass that into your CSS const x = mapX(item.centerX - event.x) document.documentElement.style.setProperty(--x, x) When the pointer leaves the list item, you make sure to reset these values back to 0 ✨ Once CSS has your values, it's the trick of updating the translation of each part You know that in each axis, you only want to translate the link by the padding amount li a { translate: calc(clamp(-1, var(--x), 1) * var(--pad-x)) calc(clamp(-1, var(--y), 1) * var(--pad-y)); transition: translate var(--speed, 1s) var(--ease, var(--elastic)); } This will translate the link within the list item by the desired amount. The cool part here is that you can set an offset for the text inside the link and have that move at a different rate ⭐️ By only updating the --pad-x/y custom properties for the inside the link, you can control how much it moves nav a span { --pad-x: 0.25rem; --pad-y: 0.25rem; } And the last piece, how do you update the behavior for transition speeds? And so it springs back like that? Again, use custom properties ✨ a:hover { --s: 0s; } a { transition: translate var(--s, 1s) var(--ease, var(--elastic)); } By default, a link will use --elastic easing via linear() and have a transition-duration of 1s. When a link is hovered that speed becomes 0s because you want the link to magnetise to your pointer. How about that little gap between when your pointer enters the item but hasn't hovered the link? Set a different transition so it transitions to being hovered 🫶 nav li:hover a { --ease: ease-out; --speed: 0.1s; } That's kinda it! 🙌 Use JavaScript (~40 loc) to get the information and then let CSS do all the lifting for you 💪 Any questions or suggestions, let me know 🙏 If you want a walkthrough video, also let me know please 🙏 CodePen.IO link below 👇](https://image.24vids.com/tw-1745716136824672271/ext_tw_video_thumb/1745612660081881088/pu/img/SsGz-uqmfdr1KZ7H.jpg)
![CSS Tip! ✨ It's 2024 and you have a new way to make animated borders 🚀 .glow::after { offset-path: rect(0 100% 100% 0 round var(--radius)); animation: loop; } @keyframes loop { to { offset-distance: 100%; }} Using the offset-* properties you can animate elements along the perimeter of others 😍 The rect() value gained support in Safari 17.2 🙌 To start, you create an element and put it inside your main element. For example, you put a span inside the button 🤙 Click me! Make the element fill its parent with absolute positioning and inset [data-glow] { position: absolute; inset: 0; } Now the good part, you use a pseudoelement on that element and define an offset-path [data-glow]::after { content: ""; offset-path: rect(0 auto auto 0 round var(--radius)); animation: loop 2.6s infinite linear; } With the rect value, you are saying the path fills the parent container: top: 0 right: auto || 100% bottom: auto || 100% left: 0 Then you can use round to make sure the path uses the same radius as whatever the parent has The @keyframes animation merely animates the offset-distance of that pseudoelement to 100% @keyframes loop { to { offset-distance: 100%; }} You can see this more clearly in the video 🫶 The offset-* properties also include an offset-anchor property. This allows you to dictate which point of the element follows the path. For example: anchor-offset: 100% 50%; This means that the "right, center" of the element will follow the perimeter of the parent element 🤙 Lastly, the visuals 🎨 For color, you can use a gradient such as a linear gradient to fill the pseudo-element. [data-glow]::after { background: radial-gradient( circle at right, hsl(320 90% 100%), transparent 50% ); } Then clip away everything so you only have the border and can still have translucent backgrounds, etc. Use a mask with mask-composite ✨ A little transparent border trick: [data-glow] { border: 2px solid transparent; mask: linear-gradient(transparent, transparent), linear-gradient(white, white); mask-clip: padding-box, border-box; mask-composite: intersect; } Bit of a long one. Hope you find it useful 🙏 CodePen.IO link below 👇](https://image.24vids.com/tw-1752903535488823789/ext_tw_video_thumb/1752900027591151616/pu/img/d0sViTqgbe8N-yux.jpg)
![CSS Tip! 💪 You can create these tab controls with CSS :has() + radio buttons ✨ .tabs:has(input:nth-of-type(3)) { --count: 3; } .tabs:has(:checked:nth-of-type(3)) { --active: 2; } .tabs::after { translate: calc(var(--active, 0) * 100%) 0; width: calc(100% / var(--count)); } Two CSS :has() tricks here combined with a rendering trick 🤙 The tab control is a container using display: grid. You can use :has() to count the number of tabs in the container: .tabs:has(input:nth-of-type(3)) { --count: 3; } .tabs:has(input:nth-of-type(4)) { --count: 4; } Using the cascade, the last valid :has() gives you the number of tabs 🫶 Once you know the number of tabs, you know how to size the indicator: .tabs::after { content: ""; position: absolute; height: 100%; width: calc(100% / var(--count)); } It's a pseudoelement that uses --count to determine its size 📏 The next :has() trick is determining which tab is active or :checked as it's an input [type=radio] .tabs:has(:checked:nth-of-type(2)) { --active: 1; } .tabs:has(:checked:nth-of-type(3)) { --active: 2; } You can use a zero-indexed translation here. If the second input is :checked, set --active: 1, then translate the pseudoelement on the tabs to that position 👉 .tabs::after { translate: calc(var(--active, 0) * 100%) 0; } The last rendering trick is using mix-blend-mode 👀 The tabs have a black background-color, the pseudoelement is white, and the label text is white. When you use mix-blend-mode: difference on the pseudoelement it will give this effect that the text transitions from white to black sliding across 😎 .tabs::after { color: hsl(0 0% 100%); mix-blend-mode: difference; } You can totally mix up the colors here though and go with a different effect. The mechanics of how you can use CSS :has() is the main point here 🙏 As always, any questions, suggestions, etc. let me know CodePen.IO link below! 👇 (There's even a Tailwind CSS play for this one too 👀)](https://image.24vids.com/tw-1746099478656901617/ext_tw_video_thumb/1746099293872898048/pu/img/oonp9Ek6MULFcFjk.jpg)
![CSS Tip 🤙 You can create this header effect using position: sticky, clip-path, and custom properties 🔥 (Video 👀) header { position: sticky; top: var(--margin); } main { clip-path: inset(var(--header) 0 0 0);) } No mix-blend-mode or animations required ✨ What's the trick then? 🧐 Duplicate the header element first. Then fix the positioning of one behind the content. header[aria-hidden] { position: fixed; top: 0; margin-top: var(--margin); } Clip the top of the content to reveal the fixed header and put a sticky-positioned header inside it that matches up in position and size ✂️ :root { --header: calc(var(--margin) + var(--font-size)); } main { clip-path: inset(var(--header) 0 0 0); } header { position: sticky; top: var(--margin); } Make your life easier with custom properties 🙌 As the body scrolls, the fixed header gets covered by the clipped content and creates the effect ✨ And because the sticky header is "stuck" it reveals itself as the content goes out of view 😍 This one's pretty cool. You can set the font color to whatever you want. At first glance, it looked like it was a mix-blend-mode thing. It doesn't have to be! Think about it and lean into z-indexing 🫶 Watch the video to get an idea of things with the exploding view 🤯 Any questions, etc. let me know! Will likely do a YouTube video on this one too! 🙏 CodePen.IO link below! 👇](https://image.24vids.com/tw-1742391976517927321/ext_tw_video_thumb/1742387238879514624/pu/img/qhFKDDbPrYvBH8B6.jpg)
![CSS Tip! 🐳 You can add little details like this scale down on scroll effect with scroll-driven animations and some sticky positioning 🤙 section { animation: scale-down; animation-timeline: view(); animation-range: exit; } @keyframes scale-down { to { scale 0.8; } ] In this smaller example, you can lean into using the position to drive an animation that scales itself down as it leaves the viewport (Seen on the Apple Vision Pro site 🍏) The nice thing here is that if you don't have scroll-driven animations, the user still gets a good experience ✨ So how do you do it? There isn't much to it header { transform-origin: 50% 0%; animation: scale-down both ease-in; animation-timeline: view(); animation-range: exit; view-timeline: --header; } @keyframes scale-down { to { scale: 0.8 0.8; } } That's it. The layout makes use of position: sticky so that the element stays in the shot whilst you scroll the page. As it leaves the page, it scales down inside the 🫶 The other smol animation here is fading the overlay on the video out 😎 Real easy. You may notice the view-timeline you defined above for the 👀 header { view-timeline: --header; } You have a pseudoelement on the text content of the header that lives inside a header > section::before { background: hsl(0 0% 0% / 0.75); opacity: 1; animation: fade both linear; animation-timeline: --header; animation-range: exit-crossing 0% exit 0%; } @keyframes fade { to { opacity: 0; } } You use a slightly smaller range on this with exit-crossing to fade it out before you start the scale down animation 🤏 That's it! Thought this smaller example would be easier to grok for people 🙏 It's also covered with JavaScript if you really want it for your sites 🤙 CodePen.IO link below 👇](https://image.24vids.com/tw-1752479022674481373/ext_tw_video_thumb/1752475535978934272/pu/img/5naYIYo6vw_NbpbO.jpg)
![CSS Trick 🤙 You can create these tab bar controls by using :has() to count the number of tabs ⭐️ .tabs:has(input:nth-of-type(3)){--count: 3;} .tabs:has(:checked:nth-of-type(3)){--active: 200%;} .tabs::after{ translate:var(--active) 0;} Let's break it down in this ! 📼 Couple of CSS :has() tricks here combined with custom properties 😎 First things first, lay out the tabs using display: grid. This gives you a way to create equal-width tabs 🙏 .tabs { display: grid; grid-auto-flow: column; } Then you use :has() to count the number of tabs and store that in a custom property 🤓 .tabs:has(input:nth-of-type(3)) { --count: 3; } .tabs:has(input:nth-of-type(4)) { --count: 4; } Using the cascade, the last valid :has() gives you the number of tabs 🫶 Using the tab count, you can size the tab indicator. For the tab indicator, use the tabs pseudoelement: .tabs::after { content: ""; position: absolute; height: 100%; width: calc(100% / var(--count)); } See how you can use --count to determine its size 📏 Next, use :has() to determine which tab is active or :checked with input [type=radio] .tabs:has(:checked:nth-of-type(2)) { --active: 1; } .tabs:has(:checked:nth-of-type(3)) { --active: 2; } You can use a zero-indexed translation here. If the second input is :checked, set --active: 1, then translate the pseudoelement on the tabs to that position 👉 .tabs::after { translate: calc(var(--active, 0) * 100%) 0; } Or you could set active to the translation: .tabs:has(:checked:nth-of-type(2)) { --active: 100%; } Setting the custom property allows you to use the index elsewhere if you need it 🤙 The final piece is using mix-blend-mode 👀 The tabs have a black background-color, the pseudoelement is white, and the label text is white. When you use mix-blend-mode: difference on the pseudoelement it will give this effect that the text transitions from white to black sliding across 😎 .tabs::after { color: hsl(0 0% 100%); mix-blend-mode: difference; } You can totally mix up the colors here though and go with a different effect. The mechanics of how you can use CSS :has() is the main point here 🙏 As always, any questions, suggestions, etc. let me know CodePen.IO link below! 👇 (There's even a Tailwind CSS play for this one too 👀)](https://image.24vids.com/tw-1750370338041647245/ext_tw_video_thumb/1750367384505081856/pu/img/ZVW6XE5SU4mBEB5M.jpg)
