CSS Anchor Positioning hits Baseline: dropdowns without JavaScript

CSS Anchor Positioning reached Baseline status in September 2026, meaning all current major browser releases now support it. The position-try-fallbacks property automatically flips a panel when it runs out of room, replacing libraries like Popper.js and Floating UI.

• Anchor Positioning reached Baseline in September 2026
• position-try-fallbacks flips the panel when space runs out
• Logical values block-start and span-inline-end give free RTL support
• Replaces Popper.js and Floating UI with no dependencies or scroll listeners