diff --git a/src/index.html b/src/index.html
index c92860e..151ce5c 100644
--- a/src/index.html
+++ b/src/index.html
@@ -12,10 +12,9 @@
       
 
       
-      
       
 
-      
+      
 
       
       
diff --git a/src/main.js b/src/main.js
index 93a3a99..a89e82d 100644
--- a/src/main.js
+++ b/src/main.js
@@ -48,16 +48,25 @@ document.addEventListener("DOMContentLoaded", () => {
       alert("Hold up, one or more fields are invalid! Try again");
     }
   });
+
   countryInput.addEventListener("input", () => {
-    countryInput.setAttribute(
-      "input-valid",
-      countryInput.value.search(COUNTRY_REGEX) >= 0,
-    );
+    const valid = countryInput.value.search(COUNTRY_REGEX) >= 0;
+    countryInput.setAttribute("input-valid", valid);
+    if (valid) {
+      countryInput.setCustomValidity("");
+    } else {
+      countryInput.setCustomValidity("Invalid country");
+    }
   });
 
-  countryInput.addEventListener("change", () => {
-    document.querySelector("#country-info").textContent =
-      countryInput.value.search(COUNTRY_REGEX) >= 0 ? "" : "Invalid country";
+  zipInput.addEventListener("input", () => {
+    const valid = zipInput.value.search(/\d{2}-\d{3}/) >= 0;
+    zipInput.setAttribute("input-valid", valid);
+    if (valid) {
+      zipInput.setCustomValidity("");
+    } else {
+      zipInput.setCustomValidity("ZIP Code format should be 12-345");
+    }
   });
 
   passwordInput.addEventListener("input", checkPasswordValidity);