What's new for the web platform
summary
A rapid inventory of concrete platform changes: CSS accent-color and cascade layers are now cross‑browser; HTML dialog and input datetime‑local are usable without polyfills; COLRv1 fonts reduce bitmap size; Chromium adds bfcache and Fetch Priority hints; loading="lazy", aspect‑ratio, containment and container queries (polyfill available) cut load and layout jank; SIMD speeds WebAssembly (used in Squoosh); structuredClone and createImageBitmap land everywhere; Topics API and Navigation API are in origin trials; WebCodecs and Window Controls Overlay are Chromium‑led experiments.
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chapters (33)
- 0:00Intro
- 0:51New UI features
- 1:10Accent color
- 2:11Dialog
- 3:26Selectmenu
- 4:14Datetime-local
- 4:35COLRv1
- 5:44Bfcache
- 7:02Image Lazy Loading
- 7:36Aspect-ratio
- 8:18Containment
- 9:21Priority hints
- 10:13Size-adjust
- 10:56SIMD
- 13:32CHIPS
- 14:43Topics
- 15:39User-Agent Client Hints
- 17:01Media Session API
- 17:22Window controls overlay
- 18:35Navigation API
- 18:54Page transition API
- 19:41Web app color scheme
- 19:51Eyedropper API
- 20:46Virtual Keyboard
- 21:11Structured cloning
- 21:59CreateImageBitmap
- 23:25SharedArrayBuffer
- 23:57URLPattern
- 24:39Web Codecs API
- 24:55Cascade layers
- 27:36has()
- 29:36Container queries
- 29:54Wrap up








