JDH: Finish wesbos#3

Author: Jess Hines

03 - CSS Variables/index-START.html

@@ -9,10 +9,10 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
 
   <div class="controls">
     <label for="spacing">Spacing:</label>
-    <input type="range" name="spacing" min="10" max="200" value="10" data-sizing="px">
+    <input type="range" name="spacing" min="10" max="200" value="10" data-units="px">
 
     <label for="blur">Blur:</label>
-    <input type="range" name="blur" min="0" max="25" value="10" data-sizing="px">
+    <input type="range" name="blur" min="0" max="25" value="10" data-units="px">
 
     <label for="base">Base Color</label>
     <input type="color" name="base" value="#ffc600">
@@ -21,6 +21,20 @@ <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-color: var(--base);
+      filter: blur(var(--blur));
+    }
+    .hl {
+      color: var(--base);
+    }
 
     /*
       misc styles, nothing to do with CSS variables
@@ -48,6 +62,16 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   </style>
 
   <script>
+    const inputs = document.querySelectorAll(
+    '.controls input');
+
+    function handleUpdate() {
+      const units = this.dataset.units || '';
+      document.documentElement.style.setProperty(`--${this.name}`, `${this.value}${units}`);
+    }
+
+    inputs.forEach(input => input.addEventListener('change', handleUpdate));
+    inputs.forEach(input => input.addEventListener('mousemove', handleUpdate));
   </script>
 
 </body>