Update app.py

app.py

@@ -15,19 +15,6 @@ PLACEHOLDER = """
 </center>
 """
 
-
-CSS = """
-.duplicate-button {
-    margin: auto !important;
-    color: white !important;
-    background: black !important;
-    border-radius: 100vh !important;
-}
-h3 {
-    text-align: center;
-}
-"""
-
 from huggingface_hub import snapshot_download
 from pathlib import Path
 
@@ -88,7 +75,7 @@ def stream_chat(
             
 chatbot = gr.Chatbot(height=600, placeholder=PLACEHOLDER)
 
-with gr.Blocks(css=CSS, theme="ocean") as demo:
+with gr.Blocks(theme="citrus") as demo:
     gr.HTML(TITLE)
     gr.DuplicateButton(value="Duplicate Space for private use", elem_classes="duplicate-button")
     gr.ChatInterface(