Lightning CSS

Looks like Vite 8 is using Lightning CSS as the default CSS minifier! Most next-generation build tools are now using it, including Turbopack, Rspack, Tailwind, Parcel, Bun (a port), and now Vite. ⚡️

DevStack™ Lightning CSS v1.30.0 is released! 😀 ⚡️ Updated relative color spec for numbers and percentages ⚡️ Updated nesting spec for pseudo elements and interleaved rules ⚡️ Skip generating unnecessary @​supports ⚡️ Android support ⚡️ ... and more! github.com/parcel-bundler…

Very excited to see oxvg, a Rust-based alternative to SVGO powered by @lightningcss and other browser-grade components from Servo! Has the potential to be not just faster, but also optimize better. ⚡️ github.com/noahbald/oxvg

⚡️ @lightningcss inside ™

Just released Lightning CSS v1.29! ⚡️ • Support for View Transitions Level 2 rules, properties, and selectors, with css module scoping • @​font-feature-values • Enable/disable compiling light-dark() • Better media query range output • ...and more! github.com/parcel-bundler…

Released Lightning CSS v1.28! ⚡️ • Option to skip hashing container names in CSS modules • Fixed bugs with calc() minification • Fixed ordering issue for size properties with fallback values • Improved error messages for selectors and CSS modules buff.ly/3C54MYH

Thanks for the sponsor! Excited to see Rolldown using @lightningcss! ⚡️

Happy new week! New StyleX release v0.8.0 is out now! - new and improved lint rules - many small fixes - introducing lightningcss to our Rollup plugin.

Lightning CSS v1.27.0 is out! ⚡️ Adds a [content-hash] pattern for CSS modules, enabling multiple versions of a library to coexist without conflicts. Implements "pure mode" for CSS modules, which enforces each rule to be locally scoped with at least one id or class selector. Thanks @kdy1dev! Also improves selector parser error messages and fixes some bugs. Thanks to everyone who contributed! 😍 github.com/parcel-bundler…

Just released @lightningcss v1.26.0! ⏵ Support for animation-range properties ⏵ Support for named timeline ranges in @​keyframes ⏵ Error on unsupported :global/:local syntax in CSS modules ⏵ Support for Windows on ARM github.com/parcel-bundler…

Cool milestone: Lightning CSS passed 1 million weekly downloads this week! And that's not even counting Next.js, which compiles its own copy. 📈⚡️

Lightning CSS v1.25.0 is out! ⚡️ • CSS module options to disable scoping for grid, animation, and other features • Optimizes the `all` shorthand • Support animation-timeline in animation shorthand • Bug fixes for transforms, color, and animations github.com/parcel-bundler…

The one with @lightningcss ⚡️

Want to use light-dark() today across all browsers? Use @lightningcss! ⚡️ #light-dark%28%29-color-function" target="_blank" rel="nofollow noopener">lightningcss.dev/transpilation.…

Nice to see Lightning CSS making its way into more tools! Those are some great performance improvements too: 70x faster CSS compilation, 30% faster builds overall. ⚡️

Big day for Lightning CSS! First Tailwind v4, and now Next.js. 🎉

Tailwind now has Lightning CSS built in! Huge congrats to the team on shipping. ⚡️

Just released Lightning CSS v1.24.0! ⚡️ Support for compiling the light-dark() color function, enabling simple OS + programmatic dark mode toggles! 🌘 Also improves minification for custom properties, @​keyframes rules, system colors, and more! 💪 github.com/parcel-bundler…

The next version of Lightning CSS will be able to down-level the light-dark() function using some CSS variable fallback tricks! This lets you implement dark mode without writing any media queries, and programmatically switch themes just by changing the `color-scheme` property. 🤯

Just released @lightningcss v1.23.0! 🌈 Downleveling for relative color syntax with variables in the alpha channel 🍰 Optimized @​layer and @​property rule minification 🏝️ StyleSheet and StyleSheetExit visitors for custom plugins 🤩 ... and more! github.com/parcel-bundler…