diff --git a/assets/js/script.js b/assets/js/script.js
index 4b9f033..972f385 100644
--- a/assets/js/script.js
+++ b/assets/js/script.js
@@ -7,11 +7,13 @@
  */
 
 const addEventOnElem = function (elem, type, callback) {
-  if (elem.length > 1) {
+  // Check if elem is a NodeList or Array
+  if (elem instanceof NodeList || Array.isArray(elem)) {
     for (let i = 0; i < elem.length; i++) {
       elem[i].addEventListener(type, callback);
     }
   } else {
+    // This handles single elements AND the window object correctly
     elem.addEventListener(type, callback);
   }
 }
@@ -73,4 +75,4 @@ const accordionAction = document.querySelectorAll("[data-accordion-action]");
 
 const toggleAccordion = function () { this.classList.toggle("active"); }
 
-addEventOnElem(accordionAction, "click", toggleAccordion);
\ No newline at end of file
+addEventOnElem(accordionAction, "click", toggleAccordion);
diff --git a/index.html b/index.html
index 126b54b..d1525fd 100644
--- a/index.html
+++ b/index.html
@@ -111,7 +111,7 @@
 
           <div class="hero-content">
 
-            <p class="hero-subtitle has-before">Wellcome to Our Agency</p>
+            <p class="hero-subtitle has-before">Welcome to Our Agency</p>
 
             <h1 class="h1 hero-title">Smart Ideas for your Brand are Here</h1>
 
@@ -412,7 +412,7 @@ <h3 class="h3 card-title">Customer Strategy</h3>
 
                 <data class="card-number" value="04">04</data>
 
-                <h3 class="h3 card-title">Best Premimum Image</h3>
+                <h3 class="h3 card-title">Best Premium Image</h3>
 
                 <p class="card-text">
                   Nullam ullamcorper condimentum urna eu accumsan.
@@ -833,4 +833,4 @@ <h3 class="h3 card-title">
 
 </body>
 
-</html>
\ No newline at end of file
+</html>