diff --git a/docs/docs/rspack/node-externals.mdx b/docs/docs/rspack/node-externals.mdx
index 01aaf19..b1a0446 100644
--- a/docs/docs/rspack/node-externals.mdx
+++ b/docs/docs/rspack/node-externals.mdx
@@ -32,6 +32,10 @@ export default {
 };
 ```
 
+### Option `importType`
+
+Tells Rspack how to import external dependency. By default it is `module`.
+
 ### Option `allow`
 
 To force add some dependencies to bundle you can use `allow` option:
@@ -42,4 +46,6 @@ nodeExternals({
 });
 ```
 
-By default it contains `css-loader` because it injects some code into runtime.
+By default `css-loader` and `*.css` files allowed.
+Files from `css-loader` allowed because it injects some code into runtime.
+CSS files allowed to easy use styles from libraries like `overlay-scrollbars` or `@krutoo/showcase`.
diff --git a/docs/rspack.config.ts b/docs/rspack.config.ts
index 5110fb3..21a7489 100644
--- a/docs/rspack.config.ts
+++ b/docs/rspack.config.ts
@@ -42,10 +42,7 @@ export default [
       module: true,
     },
     devtool: isProd ? false : undefined,
-    externals: utils.nodeExternals({
-      importType: 'module',
-      allow: [/css-loader/, /\.css$/i],
-    }),
+    externals: utils.nodeExternals(),
     externalsPresets: {
       node: true,
     },
diff --git a/src/rspack/node-externals.ts b/src/rspack/node-externals.ts
index 4838bc9..2295a0b 100644
--- a/src/rspack/node-externals.ts
+++ b/src/rspack/node-externals.ts
@@ -8,24 +8,36 @@ export type AllowlistItemFunction = (request: string) => boolean;
 export type AllowlistItem = string | RegExp | AllowlistItemFunction;
 
 export interface NodeExternalsOptions {
-  /** Method of importing requested module. */
+  /**
+   * Method of importing requested module.
+   * @default `module`
+   */
   importType?: ExternalsType;
 
-  /** Defines modules that should be included to bundle. */
+  /**
+   * Defines modules that should be included to bundle.
+   * By default css-loader and `*.css` files allowed.
+   */
   allow?: AllowlistItem | AllowlistItem[];
 }
 
+const NODE_EXTERNALS_DEFAULT_ALLOW: AllowlistItem[] = [
+  // `css-loader` allowed by default to prevent errors about css-loader' runtime code was not found
+  /css-loader/,
+
+  // css files allowed by default for using files from libraries like `overlay-scrollbars` or `@krutoo/showcase`
+  /\.css$/,
+];
+
 /**
- * Simple analogue of `webpack-node-externals`.
- * Marks all files from node_modules as externals.
+ * Simple modern analogue of `webpack-node-externals`.
+ * Marks all files from `node_modules` as externals.
  * @param options Options.
  * @returns Externals function.
  */
 export function nodeExternals({
-  importType = 'commonjs',
-
-  // css-loader allowed by default to prevent errors about css-loader' runtime code was not found
-  allow = [/css-loader/],
+  importType = 'module',
+  allow = NODE_EXTERNALS_DEFAULT_ALLOW,
 }: NodeExternalsOptions = {}): ExternalItem {
   const allowPredicates = allowToPredicates(allow);