Update app.py

app.py

@@ -15,6 +15,12 @@ os.environ["OPENAI_API_KEY"] = 'sk-RQJI5MxCOPeBxgvUA1Q1T3BlbkFJ42VYGdxZC4tLv3oOA
 css = """
 #component-2 {position: absolute; bottom: 0;    width: 100%;
 }
+.app.svelte-ac4rv4>.main.svelte-ac4rv4 {
+    display: flex;
+    flex-grow: 1;
+    flex-direction: column;
+    background-image: url(https://i.ibb.co/xj8R4r3/background-vertical.png);
+}
 div.svelte-1frtwj3 {
     display: inline-flex;
     align-items: center;}