diff --git a/i.css b/i.css
index e2eafdf..c57831d 100644
--- a/i.css
+++ b/i.css
@@ -163,18 +163,17 @@ input[type=range]::-webkit-slider-runnable-track {
   height: 15px;
   cursor: pointer;
   animate: 0.2s;
-  box-shadow: 0px 0px 0px #000000;
-  background: #FFFFFF;
+  background: #000000;
+  box-shadow: #FFFFFF 0px 0px 1px 1.5px inset;
   border-radius: 50px;
-  border: 1px solid #000000;
+  border: 1px solid #ffffff;
 }
 input[type=range]::-webkit-slider-thumb {
-  box-shadow: 0px 0px 0px #000000;
-  border: 1px solid #808080;
+  border: 1px solid #ffffff;
   height: 30px;
   width: 30px;
   border-radius: 50px;
-  background: #808080;
+  background: #FFFFFF;
   cursor: pointer;
   -webkit-appearance: none;
   margin-top: -8.5px;
@@ -187,13 +186,11 @@ input[type=range]::-moz-range-track {
   height: 15px;
   cursor: pointer;
   animate: 0.2s;
-  box-shadow: 0px 0px 0px #000000;
   background: #FFFFFF;
   border-radius: 50px;
   border: 1px solid #000000;
 }
 input[type=range]::-moz-range-thumb {
-  box-shadow: 0px 0px 0px #000000;
   border: 1px solid #808080;
   height: 30px;
   width: 30px;
@@ -214,17 +211,14 @@ input[type=range]::-ms-fill-lower {
   background: #FFFFFF;
   border: 1px solid #000000;
   border-radius: 100px;
-  box-shadow: 0px 0px 0px #000000;
 }
 input[type=range]::-ms-fill-upper {
   background: #FFFFFF;
   border: 1px solid #000000;
   border-radius: 100px;
-  box-shadow: 0px 0px 0px #000000;
 }
 input[type=range]::-ms-thumb {
   margin-top: 1px;
-  box-shadow: 0px 0px 0px #000000;
   border: 1px solid #808080;
   height: 30px;
   width: 30px;
diff --git a/sw.js b/sw.js
index 8703928..b569be5 100644
--- a/sw.js
+++ b/sw.js
@@ -1,4 +1,5 @@
-if(self instanceof Window){
+const cacheVersion = 'v1';
+if(self.constructor.name === "Window"){
   window.addEventListener('load', () => {
     navigator.serviceWorker
       .register('sw.js')
@@ -9,10 +10,7 @@ if(self instanceof Window){
         console.log('Service Worker Registration Failed:', error);
       });
   });
-}else if(self instanceof ServiceWorkerGlobalScope){
-    
-  const cacheVersion = 'v1';
-  
+}else if(self.constructor.name === "ServiceWorkerGlobalScope"){
   self.addEventListener('activate', event => {
     console.log('Service Worker: Activated');
     // Remove old caches