Update app.py

app.py

@@ -5,6 +5,18 @@ client = InferenceClient(
     "mistralai/Mistral-7B-Instruct-v0.3"
 )
 
+CSS = """
+.duplicate-button {
+    margin: auto !important;
+    color: white !important;
+    background: black !important;
+    border-radius: 100vh !important;
+}
+h3 {
+    text-align: center;
+}
+"""
+
 def format_prompt(message, history):
     prompt = "<s>"
     for user_prompt, bot_response in history:
@@ -84,7 +96,7 @@ additional_inputs=[
 chatbot = gr.Chatbot(height=450,
                      layout="bubble")
 
-with gr.Blocks() as demo:
+with gr.Blocks(css=CSS) as demo:
     gr.HTML("<h1><center>🤖 Mistral-7B-Chat 💬<h1><center>")
     gr.ChatInterface(
         generate,