update

app.py

@@ -19,7 +19,7 @@ st.markdown(
         }
         h1, h2, h3, h4, h5, h6, div, span, label {
             color: black !important;
-            background-color:#000;
+            background-color:#efefef;
         }
         button, .stButton>button {
             color: black !important;