Add solution for project 03.

Carlos Filoteo · Carlos Filoteo · commit 4e6a9aa3995b · 2016-12-13T19:58:06.000-07:00
diff --git a/03 - CSS Variables/index-START.html b/03 - CSS Variables/index-START.html
@@ -21,7 +21,21 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
 
   <style>
+    :root {
+      --base: #fc0;
+      --spacing: 5px;
+      --blur: 10px;
+    }
+
+    img {
+      padding: var(--spacing);
+      background-color: var(--base);
+      filter: blur(var(--blur));
+    }
 
+    .hl {
+      color: var(--base);
+    }
     /*
       misc styles, nothing to do with CSS variables
     */
@@ -48,6 +62,13 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   </style>
 
   <script>
+    function handleUpdate() {
+      const unit = this.dataset.sizing || ''
+      document.documentElement.style.setProperty(`--${this.name}`, this.value + unit)
+    }
+
+    const inputs = document.querySelectorAll('.controls input')
+    inputs.forEach(input => input.addEventListener('input', handleUpdate))
   </script>
 
 </body>
