diff --git a/public/index.html b/public/index.html
index 33a7bff..ce9ec83 100644
--- a/public/index.html
+++ b/public/index.html
@@ -16,6 +16,13 @@
// Listen for custom events from the server
socket.on('node-data', function(data) {
console.log(data); // Log the received data to the browser's console
+ if (node === 'node4' && value === '21') {
+ // Change the background color to red
+ document.body.style.backgroundColor = 'red';
+ } else {
+ // Restore the default background color
+ document.body.style.backgroundColor = 'white';
+ }
});