CSS by T. Afif :verified:

CSS stuff by Temani Afif

💡 https://css-tip.com
🧩 https://css-shape.com
💫 https://css-loaders.com
📝 https://css-articles.com
⚙️ https://css-generators.com
🎨 https://css-pattern.com
✨ https://css-only.art
🎮 https://css-games.com
❓ https://css-quizzes.com

I verified myself because I know I am a real person. You can trust me, I know who I am.

Support Me: https://support.temani-afif.com/
Github: https://github.com/Afif13/
Codepen: https://codepen.io/t_afif
🦋: https://bsky.app/profile/css-only.dev

Public Key

npub19q8mse6f2amuz0f88trxh333clfe8x0whv553laqh2ekp76nyy4sy05kmj

NIP-05 Address

css_at_front-end.social@momostr.pink

Profile Code

nprofile1qqszsracvay4wa7p85nn43ntcccu05unn8htk22gl7st4vmqldfjz2cpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsw8v8z9

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub19q8mse6f2amuz0f88trxh333clfe8x0whv553laqh2ekp76nyy4sy05kmj

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Last Notes

2026-03-27 11:58:50 UTC

Now that my favorite feature is well supported, let's create a new set of CSS loaders 🤩
The Squishy Collection: https://css-loaders.com/squishy/
Single-element implementation powered by shape() (and linear() for the bouncy ones!)
Pick your favorite one 👇
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/301/010/649/694/379/original/e991bd1d0123156f.mp4

2026-03-25 11:25:14 UTC

I thought I had found a bug that prevented counter() from working properly, but it was a feature!
https://css-tip.com/counter-gotcha/
Another CSS gotcha that you'd better know about if you don't want to waste time trying to figure out why your code isn't working.
Thanks to @npub1szd…5a79 for the insights
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/289/555/730/065/608/original/2ece57e75605c3a7.png

2026-03-23 19:50:31 UTC

📝 New CSS Article!
If you have seen my graph theory demo and wondered how it works, then the article is finally live!
https://frontendmasters.com/blog/two-circles-one-arrow-and-anchor-positioning/
I was playing with two circles and anchor positioning, and ended up creating a shortest path algorithm.
Modern CSS is fun!
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/280/216/803/699/885/original/56f0a6a87bc7c5f8.mp4

2026-03-23 10:40:48 UTC

Stack Overflow asked me to propose a CSS Challenge, and I couldn't refuse.
https://stackoverflow.com/beta/challenges/79908564/challenge-17-the-accurate-selection
It's about Selectors and more! There is nothing to win (except a profile badge), but it's a fun challenge to illustrate your creativity.
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/278/052/990/208/988/original/5b7f11c9539d6c6e.mp4

2026-03-18 10:42:31 UTC

💡 CSS Tip!
Add an infinite wobbling animation to your image with a simple code.
https://css-tip.com/wobbling-animation/
Powered by "complex" shape()s that you can easily get from my online generator!
https://css-generators.com/fancy-frame/
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/249/749/060/505/075/original/3b49c9169706d6f1.mp4

2026-03-15 12:46:34 UTC

It's been a while since my last CSS Pattern, so let's work on new ones!
https://css-pattern.com/circles-pills/
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/233/248/920/815/568/original/fecb94cfbe5c9a26.png

2026-03-12 12:47:01 UTC

A classic rounded button: boooring!! 🥱
A squishy animated button: Yes, please!! 🤩
https://css-tip.com/squishy-button/
Another cool demo powered by the powerful shape() function
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/216/269/840/367/514/original/4b1ebcdf85618ed5.mp4

2026-03-09 18:30:43 UTC

And I know most of you are looking for the hexagon shape, so in addition to the generator, here is another code with CSS variables to easily control the radius and the rotation.
https://css-tip.com/rounded-hexagon/
Yes, you can have cool hover effects and animations!
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/200/636/528/628/665/original/6a4edfccf5cef333.mp4

2026-03-09 11:34:01 UTC

Now that shape() is available in all major browsers, let me remind you that you can use my online generator to create any polygon with ... rounded corners!
https://css-generators.com/polygon-shape/
Adjust the setting, then copy the code.
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/198/995/459/561/095/original/d7cabc975a787e8c.mp4

2026-03-01 11:53:08 UTC

- reply

Rounding the corners and it's almost ready! 😁
Now I need to find a name for it ... what I hate the most 😑
Open to suggestions 👇
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/153/774/798/872/710/original/75cbc6c319bcbf76.mp4

2026-02-26 13:11:34 UTC

Firefox is joining the shape() game 🤩
It's a good time for some blobs: https://css-generators.com/blob/
Or maybe a nice wavy divider: https://css-generators.com/wavy-divider/
And stay tuned for another generator and more shapes next week! 🤫
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/137/094/129/935/824/original/78cdbfa830041174.mp4

2026-02-22 12:54:11 UTC

Playing with shape() and border-shape 👀
Cool demos in progress ⌛
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/114/377/990/595/665/original/b16246f34f3764fc.mp4

2026-02-20 11:50:02 UTC

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Anchor positioning is supported in all major browsers and will soon be used widely. Learn how it properly works before you start hating this cool feature!
https://css-tip.com/anchor-issues/
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/116/102/800/194/145/422/original/1512fa019b11efbd.png

2026-02-19 10:12:04 UTC

💡 CSS Tip!
For years, we've had the "z-index, stacking context" nightmare, but we will soon have a worse nightmare related to Anchor Positioning 😱
When it doesn't work, it's frustrating, so it's time to learn how it really works.
https://css-tip.com/anchor-issues/
It's not as simple as you might think!
#CSS #HTML

2026-01-26 10:57:18 UTC

I was lucky to be a privileged tester of :codepen: @npub1sf7…gl68 2.0, and now they have released the Private Beta.
https://codepen.io/beta
It's finally time to unleash some cool "View Transition" demos because with the 2.0 version, we can have many pages in one pen 👀
Kudos to @npub1t0w…zgs2 and the entire team!
#CSS #HTML #web
https://cdn.masto.host/frontendsocial/media_attachments/files/115/961/037/428/157/856/original/51ad3df4dd18a689.mp4

2025-12-30 08:43:26 UTC

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even if light-dark() is supported, it's not valid because background-color doesn't accept comma separated values
It should be
```
--bgcolor: light-dark(white, black);
background-color: var(--bgcolor,white);
```
The fallback inside var(). And even in that case, it won't fallback to "white" as well.

2025-11-27 19:54:29 UTC

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The classic Breadcrumb Navigation using the above technique.
Demo: https://codepen.io/t_afif/full/ZYWoJvp via :codepen: @npub1sf7…gl68
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/115/623/405/045/627/673/original/78618ca12e60d160.png

2025-11-27 12:12:17 UTC

💡 CSS Tip!
A direction-aware arrow is good, but what about a generic way to make any CSS Shapes direction-aware? It's possible!
https://css-tip.com/direction-aware-shapes/
The code is simple and doesn't require any modern features, so it's well-supported.
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/115/621/581/997/898/937/original/2ed3dd4589ab2801.mp4

2025-10-17 21:07:37 UTC

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but if you tell your element to fill 2 cells, it won't go there because it wants 2 cells not 1.
Basically, it's about the number of cells to span, not the dimension of the element or the cell.

2025-10-17 21:06:07 UTC

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it doesn't search for enough room but it search for empty cells to fill.
If for example the first cell is empty and I have grid-auto-flow: dense, the next element will get placed there whatever the dimension of the cell and the element.
ex: https://codepen.io/t_afif/pen/JoGMKKj

2025-10-17 20:58:28 UTC

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the overlap is due to each one overflowing it's grid cell. The browser doesn't compare dimensions when placing elements inside cells so overflow cannot be prevented. Actually, there is no mechanism to achieve this.
Also grid-auto-flow: row is the default value and has no effect here.

2025-10-12 23:42:35 UTC

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The Spec part: https://www.w3.org/TR/css-align-3/#distribution-grid

2025-10-12 23:39:31 UTC

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they are exactly alike. the normal value will always behave the same as another one depending on the layout (and other things).
Related: https://css-tip.com/explore/alignment/

2025-09-03 00:57:07 UTC

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I may have to update that answer because I think with @property you can get the computed value.

2025-05-19 20:13:26 UTC

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I was not seeing it as an attack but I was listing the limitations I faced with path() that lead me to consider shape() but maybe you have ideas to overcome those limitations.
btw, path is pixel based, it doesn't scale with the element and there is no viewbox thing when you use it with clip-path. This makes them kind of useless outside a classic SVG.

2025-05-19 19:04:02 UTC

- reply

show me how you can do it using path while having it responsive and not pixel based. Or how to be able to generate the code on the fly using Sass (where you can also have CSS variables but I omitted that part from the article to not make it lengthy)

2025-05-19 15:14:32 UTC

📝 New CSS Article!
The fun continues with the new shape() function. Learn how I made those blob shapes and how you can easily animate them! 🤩
https://frontendmasters.com/blog/creating-blob-shapes-using-clip-path-shape/
Shape generator: https://css-generators.com/blob/
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/114/535/144/027/338/326/original/34b9d7497e68b8a0.mp4

2025-04-21 09:39:04 UTC

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I updated my online generator to add the radius option! The easiest way to generate regular polygons with rounded corners.
https://css-generators.com/polygon-shape/
And look at that border-only version! 🤩
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/114/375/281/491/145/365/original/4c44b90896b0d29b.mp4

2025-04-17 10:34:51 UTC

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And here is the code to generate any polygon shape with rounded corners!
https://css-tip.com/rounded-polygon/
Update the variables then get your code (There is another variation using CSS variables as well).
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/114/352/830/956/038/575/original/280bbcb6cb5f79dd.png
https://cdn.masto.host/frontendsocial/media_attachments/files/114/352/835/188/018/157/original/fa9c9315a27f9adb.png

2025-04-16 11:01:09 UTC

💡 CSS Tip!
Shapes with rounded corners are a nightmare in CSS but it's now easy with the new shape() function! 🥳
Let's start with a classic: The Hexagon
https://css-tip.com/rounded-hexagon/
Yes, you can animate the radius and rotate the shape. Modern CSS is cool!
Do you want another polygon shape? I am cooking a generic code to create all of them.
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/114/347/225/490/098/709/original/4dd3a08d3d25fb6d.mp4

2025-03-14 15:18:59 UTC

💡 CSS Tip!
A simple CSS code to smoothly stop the rotation of your element on hover. The rotation will resume smoothly on mouse-out as well.
https://css-tip.com/stop-rotation/
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/114/161/450/491/996/162/original/3b6f99e6025c6a8b.mp4

2025-02-17 11:07:53 UTC

💡 CSS Tip!
Do you know the zoom property? It works like a scale transformation except that the page layout will use the dimension of the scaled element.
https://css-tip.com/zoom/
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/114/018/868/946/396/224/original/6bd501241b38cefd.png

2025-02-13 12:56:30 UTC

💡 CSS Tip!
Do you know that One-Time password field? You can create it using only one input and a few lines of CSS.
The HTML: <input type="text" maxlength="6">
Code & Demo: https://css-tip.com/single-digit-inputs/
As a bonus, you can control the number of characters by adjusting the "maxlength" attribute (thanks to the new attr() function!)
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/113/996/683/045/131/009/original/2cd5e51e8913627d.mp4

2025-01-20 19:31:01 UTC

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In case you want a modern solution: https://css-tip.com/full-bleed-layout/
(I will soon have a detailed article about it)

2025-01-09 09:04:52 UTC

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maybe remove the "automated" thing from your profile so people know you are a real person posting and not an automatic account cross-posting.
https://cdn.masto.host/frontendsocial/media_attachments/files/113/797/593/066/901/093/original/f42f11dca635ed4e.png

2024-12-16 10:59:40 UTC

It's the end of the year so let's jump back in time and see some of my favorite CSS stuff!
This week I will post (2 posts/day) my personal top 10 of what I shared in 2024 🏆
🧵Don't miss this thread! You can also participate by telling me your favorite CSS thing 👇
#CSS
https://cdn.masto.host/frontendsocial/media_attachments/files/113/662/147/782/000/887/original/646b0e3dc89cf729.png

2024-12-07 18:45:55 UTC

- reply

A background-only version 🤩
https://codepen.io/t_afif/pen/pvzyWwQ

2024-12-06 20:04:13 UTC

A new centering method is unlocked! 🔓
Now we have 635 ways to center elements.
You can use justify-self with block elements without using Flexbox or CSS Grid. One line of code to replace "margin: auto" combined with width 🤩
Demo: https://codepen.io/t_afif/pen/ByBKNPP via :codepen: @npub1sf7…gl68
Online Version: https://css-tip.com/center-block-element/
⚠️ Chrome only for now ⚠️
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/113/607/661/685/597/443/original/e94ae7cec29a01a3.png

2024-12-01 15:48:43 UTC

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but "clamp(20%, l ,40%)" and "clamp(20%, l + 10%,40%)" aren't good

2024-12-01 15:47:12 UTC

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ok. Concerning your gif, I see you are using an addition which is different from a multiplication.
The addition doesn't work for me because in that case we have "number + percentage" but the multiplication is fine because we can do "number * percentage"
So I guess you can either use number everywhere or percentage everywhere and it will be fine (except for safari)
"clamp(20, l ,40)", "clamp(20%, l * 1%,40%)", "clamp(20%, (l + 10) * 1%,40%)" are good.

2024-12-01 15:40:20 UTC

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What about Chrome and Firefox? it does work for both or it works on Firefox only?

2024-12-01 15:23:24 UTC

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I am on Ubuntu (Version 131.0.6778.85 (Official Build) (64-bit)) and no flag enabled.
This demo is working for me on Chrome and Firefox: https://codepen.io/t_afif/pen/EaYjWVB
if you remove the 1% from "l * 1%" it doesn't work

2024-12-01 15:10:50 UTC

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hm, no ... testing again, the percentage seems to work for me on Chrome as well so both are working for me 🤔

2024-12-01 15:08:05 UTC

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looks like Safari is wrong here. As far as I know, the second syntax is the correct one.

2024-11-29 19:15:29 UTC

If you have a StackOverflow account, go upvote my answer: https://stackoverflow.com/a/74016670/8620333 and help future developers use the has() selector to count child elements.
Let's make it the top answer!
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/113/567/838/394/536/580/original/d174c895a4271260.png

2024-11-26 11:12:41 UTC

💡 CSS Tip!
Create a full-bleed layout using a few lines of code & modern CSS.
What is full-bleed? It's when an element needs to bleed outside the main container and extend to the edge of the page.
Demo: https://codepen.io/t_afif/full/vEBBoWj via @npub1sf7…gl68
Online Version (with more variations): https://css-tip.com/full-bleed-layout/
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/113/548/941/411/218/090/original/75745c4e50cbfda2.png
https://cdn.masto.host/frontendsocial/media_attachments/files/113/548/942/023/809/225/original/f47630ff8018a96f.png

2024-11-09 14:04:24 UTC

When they steal your work but also your username 😅
Another website collecting Codepen demos and pretend teaching people how to code stuff.
And a few ads on the site to earn money 😒
https://cdn.masto.host/frontendsocial/media_attachments/files/113/453/366/267/093/837/original/2155a6d99b25c8e7.png

2024-11-04 08:09:53 UTC

Since when the "container" property no more create a containing block for fixed and absolute element? 🤔
The spec still says "Applies layout containment," but chrome is not doing what I expect (Firefox is still doing what I expect)
A bug or a recent change?
demo: https://codepen.io/t_afif/pen/QWeBMKy (the header is fixed on chrome but not in Firefox)
cc @npub1szd…5a79 @npub1p63…gl53 ?
#CSS #HTML

2024-10-28 19:24:55 UTC

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If you are interested I also have a quantity query generator with shorter and modern syntax: https://css-tip.com/quantity-queries/
#CSS

2024-10-13 21:20:27 UTC

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yes curve alone is probably good as well (someone also suggested arch)

2024-10-13 20:37:18 UTC

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If the height is small I agree but for a big element I don't think people will use "curved ribbon" to look for such shape 🤔
At least, we all agree I have to keep "curved" in the name.

2024-10-13 20:16:48 UTC

How would you call the below shape? 👇
I am calling the top part "curved edge" and the bottom part "rounded edge" but what about the combination?
I don't want to call it "Rounded & Curved edges" 😅
#CSS
https://cdn.masto.host/frontendsocial/media_attachments/files/113/301/919/253/470/283/original/8de4271e70d5501a.png

2024-10-04 10:57:28 UTC

💫 New CSS Loaders!
Adding 20 more loaders to my collection! 🥳
The Filling CSS Loaders: https://css-loaders.com/filling/
Pick your favorite one 👇
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/113/248/771/926/868/894/original/1eee31c3f48d9dc6.mp4

2024-09-30 11:07:57 UTC

To my surprise, many have a wrong information about the default behavior of `position: absolute` element.
"if an absolute positioned element has no positioned ancestors, it uses the body element" NO, this is false!
❌ W3Schools is wrong.
✅ MDN is correct.
What is the initial containing block?
It's a rectangle having the same dimension as the viewport (full width/height) and anchored at the canvas origin (moves on scroll). (https://www.w3.org/TR/CSS22/visudet.html#containing-block-details)
See demo in the reply 👇
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/113/226/175/030/582/711/original/a87ad7d514a92089.png
https://cdn.masto.host/frontendsocial/media_attachments/files/113/226/175/500/136/057/original/61dfa5b1d917e501.png

2024-08-26 11:02:09 UTC

💡 CSS Tip!
A small tool to create a quantity query selector using :has(). Adjust the setting and get your selector in no time! 😎
I am trying a new kind of "interactive CSS Tip". Let me know what you think. 👇
https://css-tip.com/quantity-queries/
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/113/027/976/193/866/626/original/e7d85ffc5db35847.mp4

2024-08-04 11:23:40 UTC

🧩 CSS Shape
https://css-shape.com/rounded-edge/
#CSS #HTML
https://cdn.masto.host/frontendsocial/media_attachments/files/112/903/489/466/429/851/original/b556bc84b7c2be9e.mp4