diff --git a/biome.json b/biome.json
index 603c678..fca5f23 100644
--- a/biome.json
+++ b/biome.json
@@ -17,6 +17,15 @@
       }
     }
   },
+  "css": {
+    "formatter": {
+      "enabled": true,
+      "indentStyle": "space",
+      "indentWidth": 2,
+      "lineWidth": 100,
+      "quoteStyle": "single"
+    }
+  },
   "javascript": {
     "formatter": {
       "quoteStyle": "single"