diff --git a/src/pydase/server/web_server.py b/src/pydase/server/web_server.py
index a350775..d76fa03 100644
--- a/src/pydase/server/web_server.py
+++ b/src/pydase/server/web_server.py
@@ -5,6 +5,7 @@ from typing import Any, TypedDict
 import socketio
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import FileResponse
 from fastapi.staticfiles import StaticFiles
 
 from pydase import DataService
@@ -116,6 +117,13 @@ class WebAPI:
         def service_properties() -> dict[str, Any]:
             return self.service.serialize()
 
+        # user css to add custom stylings to the frontend
+        if self.css is not None:
+
+            @app.get("/custom.css")
+            async def styles():
+                return FileResponse(str(self.css))
+
         app.mount(
             "/",
             StaticFiles(