Modern Tailwind CSS Guide (v4)

Tailwind CSS v4 brings a refined developer experience with smarter defaults, faster builds, and a more expressive utility system. If you're starting fresh or upgrading, this short guide gives you the essential updates you need.

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Utility-First Styling

Tailwind’s core idea remains simple: apply small, meaningful classes directly in your markup.

<div class="bg-blue-500 text-white p-4 rounded-xl shadow">
  Welcome to Tailwind v4 🎉
</div>

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Enhanced Responsive System

Tailwind's breakpoints are unchanged, but responsiveness is smoother thanks to the new build engine.

Resize to see responsive text!

Breakpoints: sm, md, lg, xl, 2xl.

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Modern Layout Utilities

Flexbox

Grid

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Interaction States

Hover Me

Tailwind now auto-manages CSS layers, so hover/focus styles stay lightweight.

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Recommended Plugins

plugins: [
  require("@tailwindcss/forms"),
  require("@tailwindcss/typography"),
];