03 done

Rio Goodman · Rio Goodman · commit 29ed7684ea77 · 2016-12-10T11:30:45.000-08:00
diff --git a/03 - CSS Variables/index-START.html b/03 - CSS Variables/index-START.html
@@ -21,7 +21,17 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
 
   <style>
+    :root {
+      --base: #ffc600;
+      --spacing: 10px;
+      --blur: 10px;
+    }
 
+    img {
+      padding: var(--spacing);
+      background: var(--base);
+      filter: blur(var(--blur));
+    }
     /*
       misc styles, nothing to do with CSS variables
     */
@@ -53,6 +63,15 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   </style>
 
   <script>
+    const inputs = document.querySelectorAll(".controls input");
+
+    function handleUpdate() {
+      const suffix = this.dataset.sizing || "";
+      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>
