Update app.py

app.py

@@ -2,33 +2,27 @@ import streamlit as st
 #from streamlit_navigation_bar import st_navbar
 
 
-def page1():
-    st.write("This is the home page")
-
-
-pages = [
-    st.Page(page = "pages/type_text.py", icon=":material/home:", title="Home"),
-    #st.Page(page2, icon=":material/filter:", title="Filter"),
-    #st.Page(page3, icon=":material/settings:", title="Settings"),
-    #st.Page(page4, icon=":material/map:", title="Map"),
-]
-current_page = st.navigation(pages=pages, position="hidden")
-
-st.set_page_config(layout="wide")
-
-num_cols = max(len(pages) + 1, 8)
-
-columns = st.columns(num_cols, vertical_alignment="bottom")
-
-columns[0].write("**My App Name**")
-
-for col, page in zip(columns[1:], pages):
-    col.page_link(page, icon=page.icon)
-
-st.title(f"{current_page.icon} {current_page.title}")
-
-current_page.run()
-
+header = st.container()
+header.title("Here is a sticky header")
+header.write("""<div class='fixed-header'/>""", unsafe_allow_html=True)
+
+### Custom CSS for the sticky header
+st.markdown(
+    """
+<style>
+    div[data-testid="stVerticalBlock"] div:has(div.fixed-header) {
+        position: sticky;
+        top: 2.875rem;
+        background-color: white;
+        z-index: 999;
+    }
+    .fixed-header {
+        border-bottom: 1px solid black;
+    }
+</style>
+    """,
+    unsafe_allow_html=True
+)