diff --git a/pages/contact/contact.js b/pages/contact/contact.js
index c8b33d5..93a32aa 100644
--- a/pages/contact/contact.js
+++ b/pages/contact/contact.js
@@ -1,11 +1,24 @@
 const sendLetter = document.getElementById("sendLetter");
+const emailInput = document.getElementById("emailInput");
 
+function addClass(event) {
+    event.preventDefault(); // Prevents the default form submission behavior
 
-function addClass() {
+    // Validate email format
+    const emailValue = emailInput.value.trim();
+    if (!isValidEmail(emailValue)) {
+        alert("Invalid email address");
+        return;
+    }
+
+    // Add the "sent" class if the email is valid
     document.body.classList.add("sent");
-    
-    
 }
 
+function isValidEmail(email) {
+    // Regular expression for a simple email validation
+    const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
+    return emailRegex.test(email);
+}
 
-sendLetter.addEventListener("click", addClass);
\ No newline at end of file
+sendLetter.addEventListener("click", addClass);