How to Build Truly Responsive Components with Container Queries
Bryan Paronto explores how container queries finally solve the decade-long problem with media queries: they only know about the viewport, not the actual space available to components. Instead of creating separate ProductCard and ProductCardSidebar components, container queries let elements respond to their parent container's size, making truly reusable components possible.
With Tailwind 4.0 now including container queries natively, developers can use @container and @ prefix variants to create components that adapt based on available space rather than viewport size. This enables component libraries that work anywhere, dashboard widgets that adapt to grid cells, and design systems without endless size variants—all with 92.5% browser support.