Changelog | modern.css

Feb 15, 2026

New Added offcanvas mobile navigation menu with hamburger button

New Added "Browser compatibility" label to filter pills

New Added client-side year filtering on What's New archive page

New Newsletter now shows on all pages (moved to global footer)

Improved Swapped card hover behavior — old code shown by default, modern revealed on hover

Improved Hero code comparison now links to the centering snippet

Improved Browser icon CSS loaded locally instead of CDN

Content Updated llms.txt with latest site features and removed deleted snippets

Content Added changelog page

Feb 14, 2026

New Added browser compatibility filter pills (All / Widely available / Newly available / Limited) on home and category pages

New Filter state synced to URL params for shareable links

New Added Baseline description text and "Learn more about Baseline" link to browser support section

New Added global usage percentage to browser support section

New Added MDN documentation links to all snippets (47 snippets)

New Added polyfill links for scroll-animations, view-transitions, popover, text-wrap-balance, and anchor-positioning

Improved Fixed hero centering comparison: .center → .child/.parent to correctly show scope difference

Improved Restructured browser support section with left/right layout (badge + browsers)

Fixed Fixed browser support data for responsive-clip-paths (was incorrectly marked as "widely", now "limited")

Fixed Fixed missing browser icons on 13 "limited" snippets by adding baselineBrowsers data

Fixed Fixed double-encoded → arrows in 30 JSON snippet files

Fixed Fixed popover demo positioning using CSS anchor positioning

Content Removed 3 non-CSS snippets: dialog element, invoker commands, dialog light dismiss

Content Added 301 redirects for removed snippet URLs

Feb 9, 2026

New Launched modern-css.com

New CSS drops every month.