Zero-Runtime Floating Elements: Native CSS Anchoring Replaces JavaScript Loops

CSS Anchor Positioning has reached browser Baseline support, enabling native positioning of floating elements like tooltips without JavaScript measurement loops. This eliminates the runtime performance overhead that previously required libraries like floating-ui, while css-anchor-kit bridges the ergonomic gap by offering floating-ui's familiar API on top of native CSS. For web developers, this marks a significant shift where browser capabilities are replacing library dependencies for a foundational UI pattern.