diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..629d4e9a66 100644
--- a/01 - JavaScript Drum Kit/index-START.html	
+++ b/01 - JavaScript Drum Kit/index-START.html	
@@ -58,6 +58,24 @@
   <audio data-key="76" src="sounds/tink.wav"></audio>
 
 <script>
+function playDrums(e) { 
+  const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`);
+  const key = document.querySelector(`.key[data-key="${e.keyCode}"]`);
+  if(!audio) return;
+  audio.currentTime = 0;
+  audio.play();
+  key.classList.add('playing');
+}
+
+
+function removeTransition(e) {
+  if(e.propertyName !== 'transform') return;
+  this.classList.remove('playing');
+}
+
+const keys = document.querySelectorAll('.key');
+keys.forEach(key => key.addEventListener('transitionend', removeTransition));
+window.addEventListener('keydown', playDrums);
 
 </script>
 
diff --git a/01 - JavaScript Drum Kit/style.css b/01 - JavaScript Drum Kit/style.css
index 3e0a320b37..3efd0392e6 100644
--- a/01 - JavaScript Drum Kit/style.css	
+++ b/01 - JavaScript Drum Kit/style.css	
@@ -33,8 +33,8 @@ body,html {
 
 .playing {
   transform:scale(1.1);
-  border-color:#ffc600;
-  box-shadow: 0 0 10px #ffc600;
+  border-color:#1ed760;
+  box-shadow: 0 0 10px #1ed760;
 }
 
 kbd {
@@ -46,5 +46,5 @@ kbd {
   font-size: 1.2rem;
   text-transform: uppercase;
   letter-spacing: 1px;
-  color:#ffc600;
+  color:#1ed760;
 }
diff --git a/02 - JS + CSS Clock/index-START.html b/02 - JS + CSS Clock/index-START.html
index 2712384201..5188f1ab11 100644
--- a/02 - JS + CSS Clock/index-START.html	
+++ b/02 - JS + CSS Clock/index-START.html	
@@ -61,13 +61,37 @@
       background:black;
       position: absolute;
       top:50%;
+      transform-origin: 100%;
+      transform: rotate(90deg);
+      transition: all(0.05s);
+      transition-timing-function: cubic-bezier(0.1, 2.7, 0.58, 1);
     }
 
   </style>
 
   <script>
+  const secondHand = document.querySelector('.second-hand');
+  const minHand = document.querySelector('.min-hand');
+  const hourHand = document.querySelector('.hour-hand');
 
+  function setDate() {
+    const now = new Date();
+    const seconds = now.getSeconds();
+    const secondsDegrees = ((seconds / 60) * 360) + 90;
+    secondHand.style.transform = `rotate(${secondsDegrees}deg)`;
 
+
+    const mins = now.getMinutes();
+    const minsDegrees = ((mins / 60) * 360) + 90;
+    minHand.style.transform = `rotate(${minsDegrees}deg)`;
+
+
+    const hours = now.getHours();
+    const hoursDegrees = ((hours / 12) * 360) + 90;
+    hourHand.style.transform = `rotate(${hoursDegrees}deg)`;
+  };
+
+  setInterval(setDate, 1000);
   </script>
 </body>
 </html>
diff --git a/03 - CSS Variables/index-START.html b/03 - CSS Variables/index-START.html
index 7171607a8b..73d6b4944d 100644
--- a/03 - CSS Variables/index-START.html	
+++ b/03 - CSS Variables/index-START.html	
@@ -15,12 +15,27 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
     <input type="range" name="blur" min="0" max="25" value="10" data-sizing="px">
 
     <label for="base">Base Color</label>
-    <input type="color" name="base" value="#ffc600">
+    <input type="color" name="base" value="#1ed760">
   </div>
 
   <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
 
   <style>
+    :root {
+      --base: #1ed760;
+      --spacing: 10px;
+      --blur: 10px;
+    }
+
+    img {
+      padding: var(--spacing);
+      background: var(--base);
+      filter: blur(var(--blur));
+    }
+
+    .hl {
+      color: var(--base);
+    }
 
     /*
       misc styles, nothing to do with CSS variables
@@ -48,6 +63,14 @@ <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('mousemove', handleUpdate));
+    inputs.forEach(input => input.addEventListener('change', handleUpdate));
   </script>
 
 </body>