Create app.py

app.py

@@ -0,0 +1,16 @@
+import streamlit as st
+from streamlit_option_menu import streamlit_option_menu
+
+# Create a nested streamlit-option-menu
+options = [
+    "Option 1",
+    streamlit_option_menu(
+        "Sub Menu",
+        options=["Option 2", "Option 3"],
+        default="Option 2",
+        style={"width": "100%"},
+    ),
+]
+
+# Display the streamlit-option-menu
+streamlit_option_menu("Main Menu", options, default="Option 1", style={"width": "100%"})