Update app.py

app.py

@@ -6,7 +6,7 @@ hide_streamlit_style = """
 #MainMenu {visibility: hidden;}
 footer {visibility: hidden;}
 [data-testid="stAppViewContainer"]{
-    background: linear-gradient(115deg,#FFAF00,#FFC500,#FFD600,#FCED00,#F9F380,#F6F7CD);
+    background-image: linear-gradient(115deg,#FFAF00,#FFC500,#FFD600,#FCED00,#F9F380,#F6F7CD);
   animation: rotate 4s linear infinite;
   @keyframes rotate {
   100%{