UnoCSS and Tailwind 4.0 Redefine Frontend Performance in New Bundle Size Benchmarks

As modern web applications scale to hundreds of components, the choice of CSS architecture becomes a critical factor for initial load performance, with utility-first engines saving over 1.2 seconds on slower networks. This benchmark highlights how the JIT engines of Tailwind 4.0 and UnoCSS 0.60 significantly reduce bundle bloat compared to traditional CSS Modules through aggressive style reuse.