Update app.py

app.py

@@ -17,7 +17,7 @@ gr.Chatbot.postprocess = postprocess
 with open("css.css", "r", encoding="utf-8") as f:
     css = f.read()
 
-with gr.Blocks(css=css) as demo:
+with gr.Blocks(theme='gradio/soft') as demo:
     
     history = gr.State([])
     token_count = gr.State([])
@@ -35,7 +35,7 @@ with gr.Blocks(css=css) as demo:
             with gr.Column():
                 chatbot = gr.Chatbot()
                 user_input = gr.Textbox(show_label=False, placeholder="Enter text and press submit", visible=True).style(container=False)
-                submitBtn = gr.Button("Submit", elem_id="submit").style(container=False)
+                submitBtn = gr.Button("Submit",variant="primary").style(container=False)
                 emptyBtn = gr.Button("Restart Conversation")
                 status_display = gr.Markdown("")