File: sveltekit.md | Updated: 11/15/2025
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Installation
Setting up Tailwind CSS in a SvelteKit project.
01
Start by creating a new SvelteKit project if you don't have one set up already. The most common approach is outlined in the SvelteKit documentation.
Terminal
npx sv create my-projectcd my-project
02
Install @tailwindcss/vite and its peer dependencies via npm.
Terminal
npm install tailwindcss @tailwindcss/vite
03
Add the @tailwindcss/vite plugin to your Vite configuration.
vite.config.ts
import { sveltekit } from '@sveltejs/kit/vite';import { defineConfig } from 'vite';import tailwindcss from '@tailwindcss/vite';export default defineConfig({ plugins: [ tailwindcss(), sveltekit(), ],});
04
Create a ./src/app.css file and add an @import that imports Tailwind CSS.
app.css
@import "tailwindcss";
05
Create a ./src/routes/+layout.svelte file and import the newly-created app.css file.
+layout.svelte
<script> let { children } = $props(); import "../app.css";</script>{@render children()}
06
Run your build process with npm run dev.
Terminal
npm run dev
07
Start using Tailwind’s utility classes to style your content, making sure to import your Tailwind CSS theme for any <style> blocks that need to be processed by Tailwind.
+page.svelte
<h1 class="text-3xl font-bold underline"> Hello world!</h1><style lang="postcss"> @reference "tailwindcss"; :global(html) { background-color: theme(--color-gray-100); }</style>
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