Update app.py

app.py

@@ -7,7 +7,7 @@ hide_streamlit_style = """
 #MainMenu {visibility: hidden;}
 footer {visibility: hidden;}
 
-background-image: linear-gradient(115deg,#4fcf70,#fad648,#a767e5,#12bcfe,#44ce7b);
+background: linear-gradient(115deg,#4fcf70,#fad648,#a767e5,#12bcfe,#44ce7b);
   animation: rotate 1.5s linear infinite;
 
 </style>