What’s !important #17: Custom Highlight API, CSS Navigation Matching, Fixing text-stroke, and More
Plus, how to style skeleton UIs, how to enable diagonal scrolling, how images can overflow themselves, and yet, still more. Basically, how to do a lot of really cool (CSS) stuff. What’s !important #17: Custom Highlight API, CSS Navigation Matching, Fixing text-stroke, and More originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Daniel Schwarz • August 14th, 2026
Lire PlusBlocked aria-hidden: The Warning is Right, and Every Fix You’ve Found is Wrong
The warning is correct. And the recommended fixes you've probably seen are wrong. Here's what you can do instead to properly fix the issue. Blocked aria-hidden: The Warning is Right, and Every Fix You’ve Found is Wrong originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Durgesh Rajubhai Pawar • August 12th, 2026
Lire PlusAnimating CSS border-image
Border images are an overlooked feature. One neat fact is that border image slices can run across entire borders on an element, and animating it creates beautiful effects. Animating CSS border-image originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Preethi • August 10th, 2026
Lire PlusWhat’s !important #19: CSS Refraction Effects, Scroll State Queries, @custom-media, and More
We’re back! Don't worry, this isn’t a trick (despite what our name suggests!). However, due to the hiatus, we're also a little behind. That’s why this issue of What’s !important is absolutely stacked. All killer, no filler. Here's what you missed. What’s !important #19: CSS Refraction Effects, Scroll State Queries, @custom-media, and More originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Daniel Schwarz • October 27th, 2026
Lire PlusCSS-Tricks has a new owner!
Yes, I've got the keys to the castle, so to speak. And, even after 12 years of working on the site, I'll admit I'm a little overwhelmed and nervous about that. CSS-Tricks has a new owner! originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • October 26th, 2026
Lire PlusLet’s Use the Emergent CSS random() Function in all the Browsers
The journey to create a polyfill for the upcoming CSS random() function that works in all browsers. Let’s Use the Emergent CSS random() Function in all the Browsers originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Lee Meyer • August 31st, 2026
Lire PlusWhat’s !important #18: <geolocation>, Syntax ::highlight()ing, named-feature(), and More
Well, that’s a wrap. No, not a flex-wrap, but rather today marks a new day, week, month, season, aaaand new edition of What’s important (#18), bringing you the best content that developers have produced over the last couple of weeks or so. What’s !important #18: <geolocation>, Syntax ::highlight()ing, named-feature(), and More originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Daniel Schwarz • August 31st, 2026
Lire PlusCreating Web Widgets Using the Document Picture-in-Picture API
The general idea is that we create a Document Picture-in-Picture window (DPIP window), and then we put HTML, CSS, and JavaScript into it. Creating Web Widgets Using the Document Picture-in-Picture API originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Daniel Schwarz • August 27th, 2026
Lire Plusanimation-trigger
The CSS animation-trigger property allows you to delay the start of a CSS animation until a specific trigger occurs. animation-trigger originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Saleh Mubashar • August 26th, 2026
Lire PlusMicroLighter: Syntax Highlighter
Syntax highlighting for code blocks without the complicated markup, spans, classes, and bloated JavaScript, courtesy of Uncle Dave. MicroLighter: Syntax Highlighter originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • August 25th, 2026
Lire PlusWordPress PHP-Only Block Registration
Seven and half years after blocks arrived in Core, WordPress introduces a way to build blocks without React annd build pipelines. All you need is PHP. WordPress PHP-Only Block Registration originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Fränk Klein • August 24th, 2026
Lire PlusResolved: CSS Class Prefix Selector
A newly resolved proposal would allow us to select classes that are a prefix for variations with a wildcard, like .prefix-*. Resolved: CSS Class Prefix Selector originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • August 21st, 2026
Lire PlusCSS Navigation Matching, Early Days
Apply a style when someone navigates from one specific page to another. The idea being it'd make the sources for cross-document view transitions declarative in CSS rather than managing that stuff in JavaScript. CSS Navigation Matching, Early Days originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • August 19th, 2026
Lire PlusWordPress.com Student Plan
As someone who teaches beginning web development, I find that building a WordPress site makes for a great final project. Hosting those projects has always been a roadblock though. WordPress.com Student Plan originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • August 19th, 2026
Lire PlusDark mode toggles: two states are enough
Lea's pushing back on light/dark mode implementations that display three state options for visitors: light, dark, and system. Dark mode toggles: two states are enough originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • August 17th, 2026
Lire PlusWhat’s !important #17: Custom Highlight API, CSS Navigation Matching, Fixing text-stroke, and More
Plus, how to style skeleton UIs, how to enable diagonal scrolling, how images can overflow themselves, and yet, still more. Basically, how to do a lot of really cool (CSS) stuff. What’s !important #17: Custom Highlight API, CSS Navigation Matching, Fixing text-stroke, and More originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Daniel Schwarz • August 14th, 2026
Lire PlusBlocked aria-hidden: The Warning is Right, and Every Fix You’ve Found is Wrong
The warning is correct. And the recommended fixes you've probably seen are wrong. Here's what you can do instead to properly fix the issue. Blocked aria-hidden: The Warning is Right, and Every Fix You’ve Found is Wrong originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Durgesh Rajubhai Pawar • August 12th, 2026
Lire PlusAnimating CSS border-image
Border images are an overlooked feature. One neat fact is that border image slices can run across entire borders on an element, and animating it creates beautiful effects. Animating CSS border-image originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Preethi • August 10th, 2026
Lire PlusWhat’s !important #19: CSS Refraction Effects, Scroll State Queries, @custom-media, and More
We’re back! Don't worry, this isn’t a trick (despite what our name suggests!). However, due to the hiatus, we're also a little behind. That’s why this issue of What’s !important is absolutely stacked. All killer, no filler. Here's what you missed. What’s !important #19: CSS Refraction Effects, Scroll State Queries, @custom-media, and More originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Daniel Schwarz • October 27th, 2026
Lire PlusCSS-Tricks has a new owner!
Yes, I've got the keys to the castle, so to speak. And, even after 12 years of working on the site, I'll admit I'm a little overwhelmed and nervous about that. CSS-Tricks has a new owner! originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • October 26th, 2026
Lire PlusLet’s Use the Emergent CSS random() Function in all the Browsers
The journey to create a polyfill for the upcoming CSS random() function that works in all browsers. Let’s Use the Emergent CSS random() Function in all the Browsers originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Lee Meyer • August 31st, 2026
Lire PlusWhat’s !important #18: <geolocation>, Syntax ::highlight()ing, named-feature(), and More
Well, that’s a wrap. No, not a flex-wrap, but rather today marks a new day, week, month, season, aaaand new edition of What’s important (#18), bringing you the best content that developers have produced over the last couple of weeks or so. What’s !important #18: <geolocation>, Syntax ::highlight()ing, named-feature(), and More originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Daniel Schwarz • August 31st, 2026
Lire PlusCreating Web Widgets Using the Document Picture-in-Picture API
The general idea is that we create a Document Picture-in-Picture window (DPIP window), and then we put HTML, CSS, and JavaScript into it. Creating Web Widgets Using the Document Picture-in-Picture API originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Daniel Schwarz • August 27th, 2026
Lire Plusanimation-trigger
The CSS animation-trigger property allows you to delay the start of a CSS animation until a specific trigger occurs. animation-trigger originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Saleh Mubashar • August 26th, 2026
Lire PlusMicroLighter: Syntax Highlighter
Syntax highlighting for code blocks without the complicated markup, spans, classes, and bloated JavaScript, courtesy of Uncle Dave. MicroLighter: Syntax Highlighter originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • August 25th, 2026
Lire PlusWordPress PHP-Only Block Registration
Seven and half years after blocks arrived in Core, WordPress introduces a way to build blocks without React annd build pipelines. All you need is PHP. WordPress PHP-Only Block Registration originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Fränk Klein • August 24th, 2026
Lire PlusResolved: CSS Class Prefix Selector
A newly resolved proposal would allow us to select classes that are a prefix for variations with a wildcard, like .prefix-*. Resolved: CSS Class Prefix Selector originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • August 21st, 2026
Lire PlusCSS Navigation Matching, Early Days
Apply a style when someone navigates from one specific page to another. The idea being it'd make the sources for cross-document view transitions declarative in CSS rather than managing that stuff in JavaScript. CSS Navigation Matching, Early Days originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • August 19th, 2026
Lire PlusWordPress.com Student Plan
As someone who teaches beginning web development, I find that building a WordPress site makes for a great final project. Hosting those projects has always been a roadblock though. WordPress.com Student Plan originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • August 19th, 2026
Lire PlusDark mode toggles: two states are enough
Lea's pushing back on light/dark mode implementations that display three state options for visitors: light, dark, and system. Dark mode toggles: two states are enough originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Geoff Graham • August 17th, 2026
Lire PlusWhat’s !important #17: Custom Highlight API, CSS Navigation Matching, Fixing text-stroke, and More
Plus, how to style skeleton UIs, how to enable diagonal scrolling, how images can overflow themselves, and yet, still more. Basically, how to do a lot of really cool (CSS) stuff. What’s !important #17: Custom Highlight API, CSS Navigation Matching, Fixing text-stroke, and More originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Daniel Schwarz • August 14th, 2026
Lire PlusBlocked aria-hidden: The Warning is Right, and Every Fix You’ve Found is Wrong
The warning is correct. And the recommended fixes you've probably seen are wrong. Here's what you can do instead to properly fix the issue. Blocked aria-hidden: The Warning is Right, and Every Fix You’ve Found is Wrong originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Durgesh Rajubhai Pawar • August 12th, 2026
Lire PlusAnimating CSS border-image
Border images are an overlooked feature. One neat fact is that border image slices can run across entire borders on an element, and animating it creates beautiful effects. Animating CSS border-image originally handwritten and published with love on CSS-Tricks. You should really get the newsletter as well.
Preethi • August 10th, 2026
Lire Plus