Update popup.html

popup.html

@@ -10,7 +10,7 @@
             padding: 10px;
         }
 
-        #frequencySlider {
+        #frequencySlider, #deltaSlider, #volumeSlider {
             width: 100%;
         }
 
@@ -46,8 +46,7 @@
     <span id="volumeDisplay">Volume: 50%</span>
     <br>
     <button id="togglePlayPause">Play</button>
-    <script src="popup.js"></script>
     <button id="randomize">Randomize</button>
-
+    <script src="popup.js"></script>
 </body>
 </html>