Update app.py

app.py

@@ -91,11 +91,14 @@ app.layout = html.Div([
         ], style={"textAlign": "center"})
     ]),
 
-    html.Style("""
-    @keyframes blinker {
-        50% { opacity: 0; }
-    }
-    """)
+    dcc.Markdown('''
+<style>
+@keyframes blinker {
+  50% { opacity: 0; }
+}
+</style>
+''', dangerously_allow_html=True)
+
 ])
 
 if __name__ == "__main__":