complete wesbos#5 challenge

Author: Patrick Santos

05 - Flex Panel Gallery/index-START.html

@@ -24,9 +24,11 @@
     .panels {
       min-height:100vh;
       overflow: hidden;
+      display: flex;
     }
 
     .panel {
+      display: flex;
       background:#6B0F9C;
       box-shadow:inset 0 0 0 5px rgba(255,255,255,0.1);
       color:white;
@@ -41,6 +43,10 @@
       font-size: 20px;
       background-size:cover;
       background-position:center;
+      flex: 1;
+      flex-direction: column;
+      justify-content: center;
+      align-items: center;
     }
 
 
@@ -53,7 +59,27 @@
     .panel > * {
       margin:0;
       width: 100%;
-      transition:transform 0.5s;
+      transition: transform 0.5s;
+      flex: 1 0 auto;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+    }
+
+    .panel > *:first-child {
+      transform: translateY(-100%);
+    }
+
+    .panel.open-active > *:first-child {
+      transform: translateY(0);
+    }
+
+    .panel > *:last-child {
+      transform: translateY(100%);
+    }
+
+    .panel.open-active > *:last-child {
+      transform: translateY(0);
     }
 
     .panel p {
@@ -67,6 +93,7 @@
     }
 
     .panel.open {
+      flex: 5;
       font-size:40px;
     }
 
@@ -102,7 +129,20 @@
   </div>
 
   <script>
+    const panels = document.querySelectorAll('.panel')
+
+    function toggleOpen () {
+      this.classList.toggle('open');
+    }
+
+    function toggleActive (e) {
+      if (e.propertyName.includes('flex')) {
+        this.classList.toggle('open-active')
+      }
+    }
 
+    panels.forEach(panel => panel.addEventListener('click', toggleOpen));
+    panels.forEach(panel => panel.addEventListener('transitionend', toggleActive));
   </script>