Update app.py

app.py

@@ -67,7 +67,7 @@ def check_rand(inp, val):
         return gr.Slider(label="Seed", minimum=1, maximum=1111111111111111, value=int(val))
 
 
-with gr.Blocks(css=background-color: rgb(74 222 128),theme=gr.themes.Soft()) as app:
+with gr.Blocks(css=".gradio-container {background-color: rgb(74 222 128)}",theme=gr.themes.Soft()) as app:
     gr.HTML(
         """<center><h1 style='font-size:xx-large;'>Google Gemma Models</h1></center>""")
     with gr.Group():