Update app.py

app.py

@@ -159,7 +159,7 @@ class Chatbot:
         """Create the Gradio interface for the Chemical Identifier."""
 
         with gr.Blocks(css="style.css",theme='karthikeyan-adople/hudsonhayes-gray') as demo:
-          gr.HTML("""<div style='background-color:rgb(0,1,36); text-align:center;padding:40px; padding-top:0'>
+          gr.HTML("""<div style='background-color:rgb(0,1,36); text-align:center;padding:40px; padding-top:0  border-radius: 25px;'>
             <img class="leftimage" align="left" src="file=logo.png" alt="Image" width="210" height="210">
             <img class="rightimage" align="right" src="file=bradford.png" alt="Image" width="210" height="210">
             <h2 style="text-align:center; color:white; text-weight:bold;padding-top:90px; padding-botton:0">Virtual Assistant Chatbot</h2>