Completed exercise wesbos#3 of JS30.

Author: amnrzv

03 - CSS Variables/index-START.html

@@ -9,13 +9,13 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
 
   <div class="controls">
     <label for="spacing">Spacing:</label>
-    <input id="spacing" type="range" name="spacing" min="10" max="200" value="10" data-sizing="px">
+    <input id="spacing" type="range" name="spacing" min="10" max="200" value="var(--spacing)" data-sizing="px">
 
     <label for="blur">Blur:</label>
-    <input id="blur" type="range" name="blur" min="0" max="25" value="10" data-sizing="px">
+    <input id="blur" type="range" name="blur" min="0" max="25" value="var(--blur)" data-sizing="px">
 
     <label for="base">Base Color</label>
-    <input id="base" type="color" name="base" value="#ffc600">
+    <input id="base" type="color" name="base" value="#1354ff">
   </div>
 
   <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
@@ -26,6 +26,12 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
       misc styles, nothing to do with CSS variables
     */
 
+    :root {
+      --base: #1354ff;
+      --spacing: 10px;
+      --blur: 1px;
+    }
+
     body {
       text-align: center;
       background: #193549;
@@ -35,6 +41,15 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
       font-size: 50px;
     }
 
+    .hl {
+      color: var(--base);
+    }
+
+    img {
+      border: var(--spacing) solid var(--base);
+      filter: blur(var(--blur));
+    }
+
     .controls {
       margin-bottom: 50px;
     }
@@ -45,6 +60,15 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   </style>
 
   <script>
+    var inputs = document.querySelectorAll(`.controls input`);
+    inputs.forEach(input => input.addEventListener('change', Update));
+
+    function Update(e)
+    {
+      const suffix = this.dataset.sizing || '';
+      console.log(e.target.value + suffix);
+      document.documentElement.style.setProperty(`--${this.name}`, e.target.value + suffix);
+    }
   </script>
 
 </body>