diff --git a/less/responsive-utilities.less b/less/responsive-utilities.less
index c756b23615..4976e2fcd9 100644
--- a/less/responsive-utilities.less
+++ b/less/responsive-utilities.less
@@ -48,12 +48,12 @@
   &.visible-md {
     @media (min-width: @screen-md) and (max-width: @screen-md-max) {
       .responsive-visibility();
-    }    
+    }
   }
   &.visible-lg {
     @media (min-width: @screen-lg) {
       .responsive-visibility();
-    }    
+    }
   }
 }
 .visible-sm {
@@ -61,7 +61,7 @@
   &.visible-xs {
     @media (max-width: @screen-xs-max) {
       .responsive-visibility();
-    }    
+    }
   }
   @media (min-width: @screen-sm) and (max-width: @screen-sm-max) {
     .responsive-visibility();
@@ -69,12 +69,12 @@
   &.visible-md {
     @media (min-width: @screen-md) and (max-width: @screen-md-max) {
       .responsive-visibility();
-    }    
+    }
   }
   &.visible-lg {
     @media (min-width: @screen-lg) {
       .responsive-visibility();
-    }    
+    }
   }
 }
 .visible-md {
@@ -82,7 +82,7 @@
   &.visible-xs {
     @media (max-width: @screen-xs-max) {
       .responsive-visibility();
-    }    
+    }
   }
   &.visible-sm {
     @media (min-width: @screen-sm) and (max-width: @screen-sm-max) {
@@ -95,7 +95,7 @@
   &.visible-lg {
     @media (min-width: @screen-lg) {
       .responsive-visibility();
-    }    
+    }
   }
 }
 .visible-lg {
@@ -103,7 +103,7 @@
   &.visible-xs {
     @media (max-width: @screen-xs-max) {
       .responsive-visibility();
-    }    
+    }
   }
   &.visible-sm {
     @media (min-width: @screen-sm) and (max-width: @screen-sm-max) {
@@ -113,7 +113,7 @@
   &.visible-md {
     @media (min-width: @screen-md) and (max-width: @screen-md-max) {
       .responsive-visibility();
-    }    
+    }
   }
   @media (min-width: @screen-lg) {
     .responsive-visibility();
@@ -128,17 +128,17 @@
   &.hidden-sm {
     @media (min-width: @screen-sm) and (max-width: @screen-sm-max) {
       .responsive-invisibility();
-    }    
+    }
   }
   &.hidden-md {
     @media (min-width: @screen-md) and (max-width: @screen-md-max) {
       .responsive-invisibility();
-    }    
+    }
   }
   &.hidden-lg {
     @media (min-width: @screen-lg) {
       .responsive-invisibility();
-    }    
+    }
   }
 }
 .hidden-sm {
@@ -154,12 +154,12 @@
   &.hidden-md {
     @media (min-width: @screen-md) and (max-width: @screen-md-max) {
       .responsive-invisibility();
-    }    
+    }
   }
   &.hidden-lg {
     @media (min-width: @screen-lg) {
       .responsive-invisibility();
-    }    
+    }
   }
 }
 .hidden-md {
@@ -167,12 +167,12 @@
   &.hidden-xs {
     @media (max-width: @screen-xs-max) {
       .responsive-invisibility();
-    }    
+    }
   }
   &.hidden-sm {
     @media (min-width: @screen-sm) and (max-width: @screen-sm-max) {
       .responsive-invisibility();
-    }    
+    }
   }
   @media (min-width: @screen-md) and (max-width: @screen-md-max) {
     .responsive-invisibility();
@@ -180,7 +180,7 @@
   &.hidden-lg {
     @media (min-width: @screen-lg) {
       .responsive-invisibility();
-    }    
+    }
   }
 }
 .hidden-lg {
@@ -188,17 +188,17 @@
   &.hidden-xs {
     @media (max-width: @screen-xs-max) {
       .responsive-invisibility();
-    }    
+    }
   }
   &.hidden-sm {
     @media (min-width: @screen-sm) and (max-width: @screen-sm-max) {
       .responsive-invisibility();
-    }    
+    }
   }
   &.hidden-md {
     @media (min-width: @screen-md) and (max-width: @screen-md-max) {
       .responsive-invisibility();
-    }    
+    }
   }
   @media (min-width: @screen-lg) {
     .responsive-invisibility();