Update app.py

app.py

@@ -642,7 +642,6 @@ css = """
     font-family: 'Inter', sans-serif;
     white-space: pre-wrap;
     font-size: 14px;
-    background-color: #222222;
     padding: 0spx;
     border-radius: 8px;
     border-left: 5px solid #4CAF50;