And here's that Codepen refactored as promised using sibling-index()
May 12, 2025 at 10:29 PM
And here's that Codepen refactored as promised using sibling-index()
thank you all – building on CodePen has truly changed my life and shaped my career in ways never imagined
June 23, 2025 at 5:43 PM
thank you all – building on CodePen has truly changed my life and shaped my career in ways never imagined
Who in their right mind would build CodePen inside of @codepen.io? With a preview, live editing and 'Open in CodePen' button???
…
…
Editable code samples that can open in CodePen: <syntax-highlight> + <code-pen>
...
codepen.io
August 7, 2025 at 10:33 AM
Who in their right mind would build CodePen inside of @codepen.io? With a preview, live editing and 'Open in CodePen' button???
…
…
The CodePen 2.0 editor has a whole new brain: The CodePen Compiler.
It looks at all your code, figures out what needs to be done, makes a plan, and executes it. It does a lot very quickly. (Go, naturally).
Here's a page that goes into some of it: codepen.io/beta/compiler
It looks at all your code, figures out what needs to be done, makes a plan, and executes it. It does a lot very quickly. (Go, naturally).
Here's a page that goes into some of it: codepen.io/beta/compiler
The CodePen Compiler
The CodePen Compiler powers 2.0 editor: process and build your code with configurable blocks.
codepen.io
March 12, 2026 at 3:23 PM
The CodePen 2.0 editor has a whole new brain: The CodePen Compiler.
It looks at all your code, figures out what needs to be done, makes a plan, and executes it. It does a lot very quickly. (Go, naturally).
Here's a page that goes into some of it: codepen.io/beta/compiler
It looks at all your code, figures out what needs to be done, makes a plan, and executes it. It does a lot very quickly. (Go, naturally).
Here's a page that goes into some of it: codepen.io/beta/compiler
Working on a CodePen redesign. Fashion and styles repeat themselves every 20 years, right?
April 30, 2026 at 2:20 PM
Working on a CodePen redesign. Fashion and styles repeat themselves every 20 years, right?
#CSS sibling-index() and sibling-count()
available Chrome Canary with experiments enabled!
easily stagger effects like:
`transition-delay: calc(sibling-index() * .1s);`
more info and a Codepen to fork
⤷ nerdy.dev/sibling-index
available Chrome Canary with experiments enabled!
easily stagger effects like:
`transition-delay: calc(sibling-index() * .1s);`
more info and a Codepen to fork
⤷ nerdy.dev/sibling-index
March 11, 2025 at 12:50 AM
#CSS sibling-index() and sibling-count()
available Chrome Canary with experiments enabled!
easily stagger effects like:
`transition-delay: calc(sibling-index() * .1s);`
more info and a Codepen to fork
⤷ nerdy.dev/sibling-index
available Chrome Canary with experiments enabled!
easily stagger effects like:
`transition-delay: calc(sibling-index() * .1s);`
more info and a Codepen to fork
⤷ nerdy.dev/sibling-index
In case you missed it, @codepen.io's podcast is back after a two year hiatus!! ❤️❤️❤️
plinkhq.com/i/824437159
plinkhq.com/i/824437159
CodePen Radio - Podcast App Links - Plink
Podcast App links to listen, download, and subscribe to CodePen Radio. Click to listen! CodePen Radio by CodePen Blog described as: The CodePen team talk about the ins and outs of running a web softwa...
plinkhq.com
July 29, 2025 at 2:22 AM
In case you missed it, @codepen.io's podcast is back after a two year hiatus!! ❤️❤️❤️
plinkhq.com/i/824437159
plinkhq.com/i/824437159
Happy New Years Bluesky! 🎊✨🥳
Here's a codepen I made: codepen.io/sdras/pen/Ld...
(ok, ok, so I made it in 2017 and updated it) 🤫
Here's a codepen I made: codepen.io/sdras/pen/Ld...
(ok, ok, so I made it in 2017 and updated it) 🤫
January 1, 2025 at 12:17 AM
Happy New Years Bluesky! 🎊✨🥳
Here's a codepen I made: codepen.io/sdras/pen/Ld...
(ok, ok, so I made it in 2017 and updated it) 🤫
Here's a codepen I made: codepen.io/sdras/pen/Ld...
(ok, ok, so I made it in 2017 and updated it) 🤫
Codepen coming once I'm happier with it, and the video breakdown should be ready in a few weeks.
September 22, 2026 at 2:58 PM
Codepen coming once I'm happier with it, and the video breakdown should be ready in a few weeks.
February 2, 2025 at 1:42 PM
FREE VFX, Shaders, and coding experiments by me (thread)
Shaky/Wobbly Web Text
bsky.app/profile/ghee...
FREE Codepen: codepen.io/gheedu/pen/j...
Shaky/Wobbly Web Text
bsky.app/profile/ghee...
FREE Codepen: codepen.io/gheedu/pen/j...
just figured out how to make text wobbly and silly using only html and css. Even works with emojis!
April 17, 2025 at 5:45 PM
FREE VFX, Shaders, and coding experiments by me (thread)
Shaky/Wobbly Web Text
bsky.app/profile/ghee...
FREE Codepen: codepen.io/gheedu/pen/j...
Shaky/Wobbly Web Text
bsky.app/profile/ghee...
FREE Codepen: codepen.io/gheedu/pen/j...
October 14, 2025 at 6:27 AM
We've long had Private Pens on CodePen, but we've taken it 2 notches up.
May 9, 2026 at 3:33 PM
We've long had Private Pens on CodePen, but we've taken it 2 notches up.
Converted handwriting into a CSS-animated SVG for a personal tribute project. See it on CodePen: codepen.io/editor/hexag...
May 12, 2026 at 2:06 PM
Converted handwriting into a CSS-animated SVG for a personal tribute project. See it on CodePen: codepen.io/editor/hexag...
This weeks CodePen challenge got me learning about glowing fungi, jellyfish, and fireflies.
Amazingly CSS can animate along a SVG path and I am so happy to have learnt about that. 🥳 I thought for sure I would need JS for the fireflies.
#CodePen #CodePenChallenge #CSS #SVG
Amazingly CSS can animate along a SVG path and I am so happy to have learnt about that. 🥳 I thought for sure I would need JS for the fireflies.
#CodePen #CodePenChallenge #CSS #SVG
April 17, 2025 at 9:29 AM
This weeks CodePen challenge got me learning about glowing fungi, jellyfish, and fireflies.
Amazingly CSS can animate along a SVG path and I am so happy to have learnt about that. 🥳 I thought for sure I would need JS for the fireflies.
#CodePen #CodePenChallenge #CSS #SVG
Amazingly CSS can animate along a SVG path and I am so happy to have learnt about that. 🥳 I thought for sure I would need JS for the fireflies.
#CodePen #CodePenChallenge #CSS #SVG
Woke up excited about subdomains.
They are free(ish) and easy. C'mon.
www.youtube.com/watch?v=Bi1u...
They are free(ish) and easy. C'mon.
www.youtube.com/watch?v=Bi1u...
Subdomains are awesome. They are like free websites. CodePen can host them easily.
YouTube video by CodePen
www.youtube.com
August 31, 2026 at 3:58 PM
Woke up excited about subdomains.
They are free(ish) and easy. C'mon.
www.youtube.com/watch?v=Bi1u...
They are free(ish) and easy. C'mon.
www.youtube.com/watch?v=Bi1u...
CodePen team cooking
You can take any 2.0 Pen:
codepen.io/editor/team/...
And deploy it:
tight-hill-cattle.codepen.app
Then map it to a subdomain*:
subscribe.shoptalkshow.com
Three-minute video on how here:
www.youtube.com/watch?v=nzeW...
And docs:
blog.codepen.io/docs/pens/de...
*apex domains coming soon.
codepen.io/editor/team/...
And deploy it:
tight-hill-cattle.codepen.app
Then map it to a subdomain*:
subscribe.shoptalkshow.com
Three-minute video on how here:
www.youtube.com/watch?v=nzeW...
And docs:
blog.codepen.io/docs/pens/de...
*apex domains coming soon.
Deploy a Pen to a Custom Subdomain
YouTube video by Chris Coyier
www.youtube.com
March 19, 2026 at 11:50 AM
CodePen team cooking
10 Cool CodePen Demos - June 2026: web components, animations, colors, squiggly lines, button generators, and some generative art.
alvaromontoro.com/10-cool-code...
Pens from @cassidoo.co, @css-only.dev, @j-dillon.bsky.social, @liamegan.bsky.social, @meodai.bsky.social and more.
#webdev #codepen
alvaromontoro.com/10-cool-code...
Pens from @cassidoo.co, @css-only.dev, @j-dillon.bsky.social, @liamegan.bsky.social, @meodai.bsky.social and more.
#webdev #codepen
10 Cool CodePen demos
10 Cool CodePen demos from June 2026
alvaromontoro.com
July 5, 2026 at 3:56 PM
10 Cool CodePen Demos - June 2026: web components, animations, colors, squiggly lines, button generators, and some generative art.
alvaromontoro.com/10-cool-code...
Pens from @cassidoo.co, @css-only.dev, @j-dillon.bsky.social, @liamegan.bsky.social, @meodai.bsky.social and more.
#webdev #codepen
alvaromontoro.com/10-cool-code...
Pens from @cassidoo.co, @css-only.dev, @j-dillon.bsky.social, @liamegan.bsky.social, @meodai.bsky.social and more.
#webdev #codepen
June 27, 2026 at 3:16 AM
📰 Firefox just landed support for native CSS Modules! 🥳
Here's Firefox Nightly with layout.css.module-scripts.enabled running a Codepen that uses standard CSS modules.
codepen.io/justinfagnan... *
*updated from @chriscoyier.net's original
That makes Chrome & Firefox w/ support. Next up Safari 🙏
Here's Firefox Nightly with layout.css.module-scripts.enabled running a Codepen that uses standard CSS modules.
codepen.io/justinfagnan... *
*updated from @chriscoyier.net's original
That makes Chrome & Firefox w/ support. Next up Safari 🙏
September 16, 2025 at 6:56 PM
📰 Firefox just landed support for native CSS Modules! 🥳
Here's Firefox Nightly with layout.css.module-scripts.enabled running a Codepen that uses standard CSS modules.
codepen.io/justinfagnan... *
*updated from @chriscoyier.net's original
That makes Chrome & Firefox w/ support. Next up Safari 🙏
Here's Firefox Nightly with layout.css.module-scripts.enabled running a Codepen that uses standard CSS modules.
codepen.io/justinfagnan... *
*updated from @chriscoyier.net's original
That makes Chrome & Firefox w/ support. Next up Safari 🙏
CodePen: exposed!
The one where I dig into the terms of service.
dbushell.com
September 8, 2026 at 9:18 AM
In the next video I break down a 3D sphere intersection demo from Codepen and it's going to be absolute cinema.
May 6, 2025 at 10:00 AM
In the next video I break down a 3D sphere intersection demo from Codepen and it's going to be absolute cinema.
*starts drafting a blog post*
Me: ”I wonder if I should use the new CodePen 2.0 editor for this example even though it’s still beta?”
*2 hours later*
CodePen: “CodePen 2.0 is here!”
Me: ”I wonder if I should use the new CodePen 2.0 editor for this example even though it’s still beta?”
*2 hours later*
CodePen: “CodePen 2.0 is here!”
July 23, 2026 at 6:07 PM
*starts drafting a blog post*
Me: ”I wonder if I should use the new CodePen 2.0 editor for this example even though it’s still beta?”
*2 hours later*
CodePen: “CodePen 2.0 is here!”
Me: ”I wonder if I should use the new CodePen 2.0 editor for this example even though it’s still beta?”
*2 hours later*
CodePen: “CodePen 2.0 is here!”