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Tailwind CSS v4 Tutorial: Setup, @theme and Upgrading from v3

Tailwind CSS v4 tutorial banner showing @import "tailwindcss" and an @theme block flowing into the Tailwind engine

Learn Tailwind CSS v4 step by step: install with Vite or Next.js, customize with @theme, add dark mode, and upgrade from v3 without breaking your design.

October 18, 2026 by Lokendra Frontend 0