Open source, Open hearts Show your love for the OSS community and send a token of appreciation to your favorite open source developers and projects.

Instead of an AI-generated hit piece, try sending your fave OSS maintainer a fun little card 💕 oss.cards

I got the links immediately and then there was an email confirmation because I checked out as a guest where it gave them to me again

Snagged a copy, thank you for all that you do!

A More Practical Way for Developers to Learn Algorithms Many developers assume performance is for specialists. Stacksmith lets you learn and experience how algorithmic choices impact every language.

Taking something arguably boring and finding an interesting way to teach it is what I love about online education. A teammate shipped a personal project doing that and it’s 🔥

The benchmarking is one of the best features, that’s been a blocker for me testing things

joachimz.me/a-more-pract...

Jelly Squish Button ...

This is insanely cool codepen.io/cerpow/pen/L...

Contact us for digital products and website designs Web design North Wales. Contact Stuff & Nonsense to work together on a product or website design.

This is so gorgeous! stuffandnonsense.co.uk/contact

Description of its creation stuffandnonsense.co.uk/blog/a-new-g...

Design Engineer, Spectrum Web Join us and help build the next generation of our world-famous tools.

Oh hey, come work with me!

We're seeking an earlier-career front-end dev who is able to work in-office (multiple US locations).

Check it out if you have interest and experience in: #designsystems #CSS #a11y #webcomponents

adobe.design/jobs/job-pos...

Screenshot of a pattern of usage, with some details Joined 348 days ago Models: 1 Claude 4 Sonnet, 2 Auto, 3 Claude 3.5 Sonnet Agents: 2k Tabs: 13k Tokens 564.8M Steak 12d

Really earned my title of "Tab-Driven Developer at DataCamp" this year

Screenshot of a Reddit post

I had seen a meme of this!

Hard same!

Chris’ Corner: Cloud Four This is an appreciation post for the Cloud Four Blog. It’s one of those must-subscribes. I find myself adding almost every post they put out to my archive of posts to dig into. So since I&#82…

Well, this brightened my day: blog.codepen.io/2025/12/15/c...

Thank you for the kind words, @chriscoyier.net 🫶

Lynn Fisher Lynn Fisher is a web designer, CSS developer, and artist from Phoenix, Arizona.

You too can make a tiny, fixed-width website in the year of our lord 2025 ⚡️ lynnandtonic.com

This is fun and somewhat nostalgic! Slice tool, anyone?

jacobfilipp.com/victorian-li...

  Hey - dbrand here. Normally, we spend a lot of money designing our emails. This year, we have no budget. It all went to our Black Friday deals. Save up to 50% here: dbrand.com/black-friday Also, every order includes free playing cards (ends Monday). Signed, A Robot Click here and we'll never email you again.​

This is clever, it stood out among Black Friday emails

Screenshot of the Netlify UI with an option to import environment variables and a textarea to paste values into

Just had to add 3 environment variables to Netlify and superrrr thankful for the "import from environment variable feature"

Imagine not writing a single line of code for a feature and then manually copying and pasting env variables like some kind of caveman 😜

I finally updated iOS and Mac and I kinda dig it. The actual glass styles are meh but I enjoy a lot of the UI shifts in iOS safari and in apple mail on both. Not sure I want widgets on my desktop but I see my desktop so rarely anyways

Details & Summary 🍏 ::details-content/content-visibility ...

This is 🔥 codepen.io/jh3y/pen/JoG...

I dig it! Haven't had an issue with it in a few years, switched because I was having trouble with nvm

I really dig the UI wrapper component!

Custom curved corner scrollbars Replace the scrollbar and thumb with a custom scrollbar that curves with the border-radius at the top and bottom. ...

This is clever! codepen.io/cbolson/pen/...

I've looked up to Mat forever so this is a bucket list moment. He taught me JavaScript properly [checks notes] nearly a decade ago with JavaScript for Web Designers and now, my knowledge is even deeper after editing this course.

It really is an evergreen resource. It's how we roll at @piccalil.li

Check out this sweet Scroll-Driven Animations demo created by Jeff (after he watched my free video course – scroll-driven-animations.style#learn)

codepen.io/webcraftsman...

(Browser support: Chrome 115, Safari 26)

Border-Radius Playground ...

some time back I built this little border radius visualizer to help figure out how some complex shapes might work- what's interesting (but understood) is how adjustments to specific corners of the element *seem* to affect other corners

codepen.io/cobra_winfre...

Whimsical Animations Learn how to create charming interactions and delightful touches using the magic of CSS, JavaScript, SVG, and Canvas. I’m sharing all my tricks in this one!

We’re live!! My brand-new course, “Whimsical Animations”, is now available. 🥳🎉

whimsy.joshwcomeau.com

I’m so excited to share all of my animation tools and techniques with y’all. 😄

So smooth! Excellent work

A property tracking map with little pins marking houses and popovers showing more information

A property tracking table showing houses for sale with key information

TFW you can't find any software that will let you track map locations connected to structured data in a table in one interface so you have to vibe code it yourself.

Felt, Airtable, etc. were all $100+/month for the right to do this. Lol, nope.

One day of GPT-5 vibe coding and problem solved.

Ooh looks like you get them all in here caniuse.com/mdn-css_prop...

Can you help me out, bluesky? 🦋

When exactly did `outline` start following the `border-radius` rounding? Because in the beginning, that wasn't the case. When did that change? When did the change land in browsers?

Thank you!

Reposts appreciated.

#CSS

One List To Rule Them All · September 10, 2025 In the darkness may it bind us

Here's a #CSS study list, 100+ features to checkout from the past ~5 years.

There're surprises in here for even the most knowledgeable front-end developer!

nerdy.dev/cascading-se...

Let’s work together. — ethanmarcotte.com Hi, I’m Ethan. I’m a web designer who helps companies make beautiful sites and services that work everywhere.

👋🏻❤️

I just wrapped a project with a lovely client, and I’m thinking about what’s next. So! I’ve got availability for new work starting in October 2025.

Spiffed up the ol’ portfolio a bit to showcase some past projects, and to talk about the work I do:

ethanmarcotte.com/work/