Update app.py

app.py

@@ -100,6 +100,9 @@ css = '''
 .logo-dark{display: none}
 .dark .logo-dark{display: block !important}
 .dark .logo-light{display: none}
+.grid-container {display: grid;grid-template-columns: repeat(2, 1fr)}
+.grid-container:has(> .gallery-item:only-child) {grid-template-columns: 1fr}
+
 '''
 with gr.Blocks(theme=gr.themes.Citrus(), css=css) as demo:
     gr.HTML('''