I’m excited to share a new project from Adobe Spectrum Web Eng that tracks support for #CSS features within and across the shadow DOM. The goal is to provide visibility into feature parity and outstanding issues. We hope you find it useful - open to contributions! shadow-dom-css.adobe.com

Modern CSS Feature Support For Shadow DOM

Tracking the state of support for CSS features within and across the shadow DOM to provide visibility into feature parity, usage details, and outstanding issues and bugs.

shadow-dom-css.adobe.com

Modern CSS is in its new era ✨ 📆 Starting Thursday, I’m teaching a live workshop on building accessible, reusable interactive components using modern #CSS that is stack-agnostic. Register if you’re ready to level up your component patterns + #accessibility 💜 👉 Discount link: ti.to/smashingmaga...

Smashing Online Workshops

Meet practical and friendly online workshops on front-end, design & UX. Boost your skills online, with actionable insights by experts in the industry, live. 👩‍💻 Find all workshops at https://smash...

ti.to

Dear conference organizers: I really want to give a talk on the ergonomics of the cascade (the “C” in #CSS) since tools for managing it are more powerful and confusing than ever. Also excited to share a trove of findings on styling across light + shadow DOM. Interested? DM me or drop your CFP 💜

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...

Design Engineer, Spectrum Web

Join us and help build the next generation of our world-famous tools.

adobe.design

📣 One week until SmashingConf NYC! I'll be going all in on #a11y and #css in both my workshop and talk, with the workshop taking place the Monday prior, Oct. 6. Grab your discounted ticket to the conf + workshop! (scroll down a bit for the bundles) Hope to see you there! ti.to/smashingmaga...

SmashingConf New York 2025

For the 9th SmashingConf New York — we will be back in downtown New York, just around the corner of Times Square on October 6–9. With one track, two days, 12 speakers and 400 attendees, expect actiona...

ti.to

📣 **One week left** until my online workshop with Smashing begins! I'm looking forward to nerding out with you about how to ensure you're using new #CSS and HTML features and behaviors to build robust, accessible components! ​🎟️ See the full schedule and more info smashingconf.com/online-works...

Building Interactive, Accessible Components with Modern CSS & JS — Online Workshops

CSS is more capable than ever, even replacing some behaviors previously only possible via JavaScript. Join this workshop to learn about the dynamic features now available in modern CSS, as well as dis...

smashingconf.com

📣 Join me in NYC this October at SmashingConf! I'll be giving both a workshop and a talk around #a11y and #css. [20% OFF] using this link - plus a discount if you plan to attend both the workshop and conference (scroll for that option!) ti.to/smashingmaga...

SmashingConf New York 2025

For the 9th SmashingConf New York — we will be back in downtown New York, just around the corner of Times Square on October 6–9. With one track, two days, 12 speakers and 400 attendees, expect actiona...

ti.to

📣 There are still early bird tickets available for my upcoming online workshop combining modern #CSS with JS accessibly, in partnership with Smashing: smashingconf.com/online-works... 🍎 Or if you happen to be going to Smashing NYC, I'll also be running it in person: smashingconf.com/ny-2025/work...

Building Interactive, Accessible Components with Modern CSS & JS — Online Workshops

CSS is more capable than ever, even replacing some behaviors previously only possible via JavaScript. Join this workshop to learn about the dynamic features now available in modern CSS, as well as dis...

smashingconf.com

Working on my talk for Web Directions Code and... What has tripped you up in regards to #CSS when styling for both light and shadow DOM? What tips would you tell your younger self to help make it less confusing?

📆 12 Days of Web returns a month from today! Be sure to sign up for reminder emails or grab the RSS feed. You won't want to miss out on getting up to speed with some of the latest web features from the 12 incredible guest authors! 12daysofweb.dev

12 Days of Web

A year-end celebration of fundamental web technologies: HTML, CSS, and JavaScript.

12daysofweb.dev

We come to you now with an Officially Big Announcement regarding a new partnership between Eleventy and CloudCannon: https://www.youtube.com/watch?v=nypsmn70ipI

Big Announcement: Eleventy and @CloudCannon!

https://cloudcannon.com/blog/cloudcannon-the-official-cms-partner-of-eleventy/and at https://www.11ty.dev/blog/cloudcannon/

youtube.com

What's always been "weird" to you about #CSS? As in, how something works? Less intuitive aspects? Stuff that trips you up even though you "know" how it works? This is not a gripe thread, I'm looking for constructive input, thanks!

If anyone needs the shirt I was wearing at #CSSDay... https://www.redbubble.com/people/5t3phDev/shop

📝 New Post: Modern CSS For Dynamic Component-Based Architecture All the words and demos from my #CSSDay talk! https://moderncss.dev/modern-css-for-dynamic-component-based-architecture/

Here are my slides from #CSSDay Thanks for sticking with me to the end! 😅 https://5t3ph.dev/cssday23

#Amsterdam locals - what should we see, and what is ok to skip while we're there for #CSS day this week?

📣 This is a call to all web educators to collectively socialize the terms "inline" and "block". If you're not ready to flip over to using logical properties, that's fine, but these terms still need to become the norm so that in a few years, the association has been established for folks.

gonna get the smallest bit spicy in tomorrow's newsletter 🌶️ https://moderncss.dev/newsletter

Shame on whoever didn't tell me about BroadcastChannel earlier. In related news: Always bet on the web platform.

🚨 Less an an hour before today's #11ty meetup! https://11tymeetup.dev/ Zoom link is in the calendar invite and will be posted to the 11ty Discord, too.

📆 Join us for THE #11ty Meetup happening tomorrow! We'll have two great talks about the Eleventy community and caching data with Eleventy Fetch. No signup required, just grab the calendar event or subscribe to the newsletter to get the Zoom link. https://11tymeetup.dev/

The main reason I continue using Grammarly is to get a weekly graph of my perceived personality 🤪

I am once again writing about my favorite #CSS grid utility.

What trips you up about #CSS custom properties? And - are you using them: a) not at all b) sometimes c) most of the time d) absolutely every project

If your framework doesn't include file-based routing as a first-class feature, I don't want it 🙅‍♀️

Pleased to share that a #CSS series I've spent several months working on with SitePoint was released today! https://www.sitepoint.com/premium/books/unleashing-the-power-of-css/ First chapter - "What You've Missed in CSS Land" - is in free preview!

plz send motivation to work on my slides, kthx

✨ New project: SupportsCSS, a drop-in feature detection script / handy reference table for creating @ supports and JS-based feature tests. https://supportscss.dev/

📝 New post: Testing Feature Support for Modern CSS Which aims to answer "how do you know a new #CSS feature is 'safe' to use?" https://moderncss.dev/testing-feature-support-for-modern-css/

Hot 'n fresh newsletter hitting ya tomorrow! https://moderncss.dev/newsletter