css fix

app.py

@@ -53,9 +53,10 @@ def predict(request: gr.Request, *args, progress=gr.Progress(track_tqdm=True)):
 
 css = '''
 #top{position: fixed;}
+#col-container{max-width: 720px;}
 '''
-with gr.Blocks() as demo:
-    with gr.Column():
+with gr.Blocks(css=css) as demo:
+    with gr.Column(elem_id="col-container"):
         gr.Markdown("# Expression Editor")
         gr.Markdown("Demo for expression-editor cog image by fofr")
         with gr.Row():