diff --git a/docs/src/test-components-js.md b/docs/src/test-components-js.md
index 9a28edd40e..9559989571 100644
--- a/docs/src/test-components-js.md
+++ b/docs/src/test-components-js.md
@@ -853,6 +853,14 @@ export default defineConfig({
 });
 ```
 
+### How do I use CSS imports?
+
+If you have a component that imports CSS, Vite will handle it automatically. You can also use CSS pre-processors such as Sass, Less, or Stylus, and Vite will handle them as well without any additional configuration. However, corresponding CSS pre-processor needs to be installed.
+
+Vite has a hard requirement that all CSS Modules are named `*.module.[css extension]`. If you have a custom build config for your project normally and have imports of the form `import styles from 'styles.css'` you must rename your files to properly indicate they are to be treated as modules. You could also write a Vite plugin to handle this for you.
+
+Check [Vite documentation](https://vite.dev/guide/features#css) for more details.
+
 ### How can I test components that uses Pinia?
 
 Pinia needs to be initialized in `playwright/index.{js,ts,jsx,tsx}`. If you do this inside a `beforeMount` hook, the `initialState` can be overwritten on a per-test basis: