diff --git a/05 - Flex Panel Gallery/index-START.html b/05 - Flex Panel Gallery/index-START.html
index c6509bed02..1be45a02e9 100644
--- a/05 - Flex Panel Gallery/index-START.html	
+++ b/05 - Flex Panel Gallery/index-START.html	
@@ -24,6 +24,7 @@
     .panels {
       min-height:100vh;
       overflow: hidden;
+      display: flex;
     }
 
     .panel {
@@ -41,6 +42,11 @@
       font-size: 20px;
       background-size:cover;
       background-position:center;
+      flex: 1;
+      justify-content: center;
+      align-content: center;
+      display: flex;
+      flex-direction: column;
     }
 
 
@@ -54,8 +60,18 @@
       margin:0;
       width: 100%;
       transition:transform 0.5s;
+      flex: 1 0 auto;
+      display: flex;
+      justify-content: center;
+      align-content: center;
     }
 
+    .panel > *:first-child { transform: translateY(-100%); }
+    .panel.open-active > *:first-child { transform: translateY(0); }
+    .panel > *:last-child { transform: translateY(100%); }
+    .panel > *:last-child { transform: translateY(100%); }
+    .panel.open-active > *:last-child { transform: translateY(0); }
+    .panel > *:last-child { transform: translateY(100%); }
     .panel p {
       text-transform: uppercase;
       font-family: 'Amatic SC', cursive;
@@ -67,6 +83,7 @@
     }
 
     .panel.open {
+      flex: 5;
       font-size:40px;
     }
 
@@ -101,9 +118,7 @@
     </div>
   </div>
 
-  <script>
-
-  </script>
+  <script src="script.js"></script>
 
 
 
diff --git a/05 - Flex Panel Gallery/script.js b/05 - Flex Panel Gallery/script.js
new file mode 100644
index 0000000000..4bc4ef9cd9
--- /dev/null
+++ b/05 - Flex Panel Gallery/script.js	
@@ -0,0 +1,13 @@
+const panels = document.querySelectorAll('.panel');
+function toggleOpen () {
+  this.classList.toggle('open'); 
+};
+
+const toggleActive = (evt) => {
+  if(evt.propertyName.includes('flex')) {
+    evt.target.classList.toggle('open-active');
+  }
+};
+
+panels.forEach(panel => panel.addEventListener('click', toggleOpen));
+panels.forEach(panel => panel.addEventListener('transitionend', toggleActive));