finished JS Day wesbos#5

Author: kdipaolo

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-items: center;
+      display: flex;
+      flex-direction: column;
     }
 
 
@@ -54,8 +60,17 @@
       margin:0;
       width: 100%;
       transition:transform 0.5s;
+      flex: 1 0 auto;
+      display: flex;
+      justify-content: center;
+      align-items: center;
     }
 
+    .panel > *:first-child { transform: translateY(-100%); }
+    .panel > *:last-child { transform: translateY(100%); }
+    .panel.open-active > *:first-child { transform: translateY(0); }
+    .panel.open-active  > *:last-child { transform: translateY(0); }
+
     .panel p {
       text-transform: uppercase;
       font-family: 'Amatic SC', cursive;
@@ -68,6 +83,7 @@
 
     .panel.open {
       font-size:40px;
+      flex: 5;
     }
 
   </style>
@@ -102,7 +118,19 @@
   </div>
 
   <script>
+    function panelHandleClick(){
+      this.classList.toggle('open')
+    }
+    function panelHandleTransitionEnd(e){
+      if(e.propertyName !== "flex-grow") return
+      this.classList.toggle('open-active')
+
+    }
 
+    const panels = document.querySelectorAll('.panel').forEach((panel) => {
+      panel.addEventListener('click', panelHandleClick);
+      panel.addEventListener('transitionend', panelHandleTransitionEnd)
+    })
   </script>