diff --git a/postcss.config.js b/postcss.config.js
index bb43fdd..d52b582 100644
--- a/postcss.config.js
+++ b/postcss.config.js
@@ -28,7 +28,10 @@ if (process.env.NODE_ENV === 'production') {
   console.log('Adding PurgeCSS')
   plugins.push(
     purgeCSSPlugin({
-      content: ['./src/**/*.{html,js,jsx,ts,tsx}', './content/**/*.{md,mdx}'],
+      content: [
+        './src/**/*.{html,js,jsx,ts,tsx,css}',
+        './content/**/*.{md,mdx}',
+      ],
       safelist: ['html', 'body'],
       variables: true,
     })