update

README.md

@@ -4,6 +4,9 @@
 
 Lightning CSS integration for Vite, Rollup, esbuild, Webpack, Vue CLI, and more.
 
+> [!TIP]
+> Since Rollup does not support CSS out of the box, you need to use a CSS plugin like [`rollup-plugin-css-only`](https://github.com/thgh/rollup-plugin-css-only).
+
 ## Installation
 
 ```bash
@@ -29,8 +32,8 @@ export default defineConfig({
 
 ```ts
 // rollup.config.js
-import LightningCSS from 'unplugin-lightningcss/rollup'
 import css from 'rollup-plugin-css-only'
+import LightningCSS from 'unplugin-lightningcss/rollup'
 
 export default {
   plugins: [LightningCSS(), css()],