How to Configure Tailwind CSS v4 in Next.js Step-by-Step

How to Configure Tailwind CSS v4 in Next.js Step-by-Step

A complete technical guide on installing, configuring, and optimizing Tailwind CSS v4 inside modern Next.js applications.

Introduction

Setting up styling infrastructure efficiently is crucial for clean web applications. In this guide, we walk through setting up Tailwind CSS v4 inside a fresh Next.js environment.

Step 1: Install Tailwind Dependencies

Run the standard package manager command inside your terminal:

npm install tailwindcss @tailwindcss/postcss postcss