diff --git a/app.py b/app.py
index 5d82610..92e000c 100644
--- a/app.py
+++ b/app.py
@@ -219,19 +219,14 @@ if st.session_state.input_validated and st.session_state.parsed_records:
             st.session_state[f"sel_{emp}"] = False
 
     # Mitarbeiter-Liste mit Rahmen
-    st.markdown(
-        '<div style="border:1px solid #d5d5d5; border-radius:6px; padding:8px 12px; '
-        'background:#fafafa; max-height:300px; overflow-y:auto">',
-        unsafe_allow_html=True,
-    )
-    selected_employees = []
-    for emp in employees:
-        key = f"sel_{emp}"
-        if key not in st.session_state:
-            st.session_state[key] = True
-        if st.checkbox(emp, value=st.session_state[key], key=key):
-            selected_employees.append(emp)
-    st.markdown("</div>", unsafe_allow_html=True)
+    with st.container(border=True):
+        selected_employees = []
+        for emp in employees:
+            key = f"sel_{emp}"
+            if key not in st.session_state:
+                st.session_state[key] = True
+            if st.checkbox(emp, value=st.session_state[key], key=key):
+                selected_employees.append(emp)
 
     st.caption(f"{len(selected_employees)} von {len(employees)} Mitarbeitern ausgewählt")
 else: