Update app.py

app.py

@@ -183,7 +183,13 @@ with gr.Blocks(title="FairFace Age & Gender — Multi-image Demo") as demo:
         img_input = gr.File(file_count="multiple", label="Upload images")
         run_btn = gr.Button("Run  ▶️")
 
-    gallery = gr.Gallery(label="Predictions", show_label=True, elem_id="gallery").style(grid=[3], height="auto")
+    gallery = gr.Gallery(
+        label="Predictions",
+        show_label=True,
+        elem_id="gallery",
+        columns=3,   # 3 images per row
+        height="auto"
+    )
 
     def run_and_predict(files):
         # files is list of uploaded file dicts or file paths depending on environment