diff --git a/assets/js/script.js b/assets/js/script.js
index 96c9572..dfe4c09 100644
--- a/assets/js/script.js
+++ b/assets/js/script.js
@@ -38,4 +38,15 @@ for (let i = 0; i < themeBtn.length; i++) {
 
   })
 
-}
\ No newline at end of file
+}
+
+// contribute code 
+
+const form = document.querySelector('.newsletter form');
+form.addEventListener('submit', (e) => {
+  const email = form.querySelector('input[name="email"]').value;
+  if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)) {
+    e.preventDefault();
+    alert('Please enter a valid email address.');
+  }
+});
\ No newline at end of file
diff --git a/index.html b/index.html
index cda1e66..5876400 100644
--- a/index.html
+++ b/index.html
@@ -137,8 +137,6 @@
 
 
 
-
-
   <main>
 
     <!--
@@ -788,10 +786,6 @@ <h2 class="h2">Newsletter</h2>
 
   </main>
 
-
-
-
-
   <!--
     - #FOOTER
   -->
@@ -865,10 +859,6 @@ <h2 class="h2">Newsletter</h2>
 
   </footer>
 
-
-
-
-
   <!--
     - custom js link
   -->