Update app.py

app.py

@@ -46,19 +46,20 @@ cfg.description = f'''<center> <h2>{cfg.description}</h2>
                         This demo uses Retrieval Augmented Generation to ask questions about {cfg.source_data_desc}</center>'''
 
 custom_css = """
-#component-0 {
+.gradio-container {
     position: relative;
 }
-#component-0::before {
+.gradio-container::before {
     content: "";
     position: absolute;
-    top: 10px;
-    left: 10px;
-    width: 100px;
-    height: 50px;
+    top: 0;
+    left: 0;
+    width: 150px;
+    height: 75px;
     background-image: url('https://github.com/david-oplatka/chatbot-streamlit/blob/main/Vectara-logo.png');
     background-size: contain;
     background-repeat: no-repeat;
+    z-index: 1000;
 }
 """