Update app.py

app.py

@@ -106,7 +106,7 @@ In this app, you can explore the outputs of a gpt-3.5-turbo LLM.
 with gr.Blocks(css = """#col_container {width: 700px; margin-left: auto; margin-right: auto;}
                 #chatbot {height: 400px; overflow: auto;}""") as demo:
     gr.HTML(title)
-    gr.HTML('''<center>输入apike秘钥即可运行，如无秘钥可加微信号：visjia购买20元一个 <a href="http://shop.vischat.xyz" style="color:white; background-color:red; border:2px solid black; padding:10px 20px; text-decoration:none;">点击购买apikey</a></center>''')
+    gr.HTML('''<center>输入apike秘钥即可运行，如无秘钥可加微信号：visjia购买20元一个 <a href="http://shop.vischat.xyz" style="color:white; background-color:red; border:2px solid black; border-radius:10px; padding:10px 20px; text-decoration:none;">点击购买</a></center>''')
     with gr.Column(elem_id = "col_container"):
         openai_api_key = gr.Textbox(type='password', label="请输入你的APIKEY秘钥")
         chatbot = gr.Chatbot(elem_id='chatbot') #c