Update app.py

app.py

@@ -22,6 +22,27 @@ custom_css = """
 }
 </style>
 """
+
+st.markdown("""
+    <style>
+        [data-testid="collapsedControl"] {
+            animation: pulse 2s infinite;
+        }
+        @keyframes pulse {
+            0% {
+                opacity: 1;
+            }
+            50% {
+                opacity: 0.5;
+            }
+            100% {
+                opacity: 1;
+            }
+        }
+    </style>
+    """, unsafe_allow_html=True)
+
+
 st.markdown(custom_css, unsafe_allow_html=True)