css variable

Qiki · Qiki · commit 0e4e2744ed08 · 2016-12-27T16:40:29.000-05:00
diff --git a/03 - CSS Variables/index-START.html b/03 - CSS Variables/index-START.html
@@ -21,10 +21,22 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
 
   <style>
+     /*  css variable*/
+    :root {
+      --base: #ffc600;
+      --spacing: 10px;
+      --blur: 10px;
+    }
 
-    /*
-      misc styles, nothing to do with CSS variables
-    */
+    img {
+      padding: var(--spacing);
+      background: var(--base);
+      filter: blur(var(--blur));
+    }
+
+    .hl {
+      color: var(--base);
+    }
 
     body {
       text-align: center;
@@ -48,6 +60,17 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   </style>
 
   <script>
+  // node list
+  // this is not an array
+  var inputs = document.querySelectorAll('.controls input');
+  function handleUpdate() {
+    var suffix = this.dataset.sizing || '';// object
+    console.log(this.dataset);
+    document.documentElement.style.setProperty(`--${this.name}`, this.value + suffix);
+  }
+
+  inputs.forEach(input => input.addEventListener('change', handleUpdate));
+  inputs.forEach(input => input.addEventListener('mousemove', handleUpdate));
   </script>
 
 </body>
