code optimization

_sass/mixin.scss

@@ -3,25 +3,25 @@
 // Nav menu
 
 @mixin icon-position($position) {
-	display: block;
+  display: block;
   position: absolute;
   top: 35px;
   #{$position}: 25px;
   z-index: 10;
   height: 36px;
   padding: 8px;
-  background-color: rgba(240,240,240,.6);
+  background-color: rgba(240, 240, 240, 0.6);
   @media (max-width: 480px) {
-      top: 15px;
-      right: 10px;
+    top: 15px;
+    right: 10px;
   }
 }
 
 @mixin open($x) {
-	-webkit-transform: translateX($x);
-     -moz-transform: translateX($x);
-      -ms-transform: translateX($x);
-          transform: translateX($x);
+  -webkit-transform: translateX($x);
+  -moz-transform: translateX($x);
+  -ms-transform: translateX($x);
+  transform: translateX($x);
   width: 100%;
   @media (min-width: 940px) {
     width: 30%;
@@ -29,7 +29,7 @@
 }
 
 @mixin nav-position($position) {
-	width: 14rem;
+  width: 14rem;
   position: fixed;
   background-color: $main-color;
   top: 0;
@@ -38,10 +38,10 @@
   color: $background-color;
   opacity: 0.95;
   -webkit-transition: all 0.3s ease-in;
-     -moz-transition: all 0.3s ease-in;
-      -ms-transition: all 0.3s ease-in;
-          transition: all 0.3s ease-in;
+  -moz-transition: all 0.3s ease-in;
+  -ms-transition: all 0.3s ease-in;
+  transition: all 0.3s ease-in;
   z-index: 1;
   padding: 72px 0;
   text-align: center;
-}
+}