Update app.py

app.py

@@ -19,7 +19,7 @@ def generate_response(model_name, message, chat_history):
 with gr.Blocks(
     css=".contain { display: flex !important; flex-direction: column !important; }"  
     "#chatbot { flex-grow: 1 !important; overflow: auto !important; }"  
-    "#col { height: calc(100vh - 112px - 16px) !important; }" 
+    "#col { height: 100% !important; }" 
     "#submit:hover { background-color: green !important; }" 
     "#clear { background-color: darkred !important; }",
     theme=gr.themes.Soft(font=[gr.themes.GoogleFont("Martel Sans")])