Browsers treat big sites differently. denodell reveals how Safari and Firefox quietly ship thousands of lines of site-specific patches to keep...

   The HTML Sanitizer API. Ahmad Alfy walks through the new browser-native API that prevents XSS without DOMPurify. Safe methods setHTML and parseHTML...

   Soon we can finally banish JavaScript to the ShadowRealm. Wilto walks through the TC39 ShadowRealm proposal, which creates isolated execution...

   WebKit features for Safari 26.5. jensimmons introduces the :open pseudo-class for styling open <details>, <dialog>, <select>, and...

   How to control infinite CSS animations. In part 1 of 2, css shows how to speed up, slow down, and reverse infinite CSS animations on demand. He uses...

   From React to native web with nanotags: a migration that saved 100 KB. Pavel Grinchenko explains how they migrated an Astro marketing site from React...

   Using safe-area-inset to build mobile-safe layouts. Modern phones have notches, cutouts, and floating buttons that overlap your UI unless you account...

   What’s new in Chrome 148. CSS name-only container queries can match by container-name without a container-type. The at-rule() function in supports...

   Media queries range syntax. shadeed9 shows how the classic min-width and max-width syntax creates overlap bugs at identical breakpoints, like two...

   Design token naming conventions: a practical guide. sturobson breaks down how to build token names that scale. He covers three token tiers ...

   SVG from scratch. carmenansio presents SVG not as a graphics format but as a DOM: every shape is an element, every attribute is a style, that could...

   The web is fun again: first experiments with HTML in <canvas>. amit sheen explores the experimental Canvas Draw Element API behind the flag in...

   Scroll-driven animations. joshwcomeau dives into CSS animation-timeline, mapping keyframes over scroll distance instead of duration. He covers timing...

   Automate the browser from the terminal with Chrome DevTools MCP CLI. nucliweb walks through chrome-devtools-mcp, a CLI that controls Chrome through...

   The end of responsive images. Wilto, former chair of the Responsive Image Community Group, looks back on a decade of wrestling with the sizes...

   Your options for preloading images with JavaScript. Alex MacArthur compares five approaches to preloading images: new Image(), <link rel...

   Playwright accessibility testing: what axe and Lighthouse miss. David Mello explains that automated tools like axe and Lighthouse catch only 30-40%...

   Highlights from Git 2.54. Taylor Blau walks through new features including git history reword, which opens your editor with a commit’s message and...

   Firefox 150 release notes for developers. The release adds sizes "auto" for lazy-loaded images, color-mix() with multiple colors, light...

   Fully local code embeds. Aleksandr Hovhannisyan built a web component that renders isolated code sandboxes using iframe srcdoc, without relying on...