Stop outputting padding on center if none

Author: Cory Simmons

less/lost.less

@@ -1,4 +1,4 @@
-// Lost Grid v5.1.3 - https://github.com/corysimmons/lost
+// Lost Grid v5.1.4 - https://github.com/corysimmons/lost
 
 @gutter: 30px;
 @rtl: false;
@@ -94,9 +94,11 @@
   & when (@flex = true) {
     .flex-container();
   }
+  & when not (@pad = 0) {
+    padding-left: @pad;
+    padding-right: @pad;
+  }
   max-width: @max-size;
-  padding-left: @pad;
-  padding-right: @pad;
   margin-left: auto;
   margin-right: auto;
 }

scss/lost.scss

@@ -1,4 +1,4 @@
-// Lost Grid v5.1.3 - https://github.com/corysimmons/lost
+// Lost Grid v5.1.4 - https://github.com/corysimmons/lost
 
 $gutter: 30px !default;
 $rtl: false !default;
@@ -85,9 +85,11 @@ $flexbox: false !default;
   } @else {
     @include flex-container;
   }
+  @if ($pad != 0) {
+    padding-left: $pad;
+    padding-right: $pad;
+  }
   max-width: $max-size;
-  padding-left: $pad;
-  padding-right: $pad;
   margin-left: auto;
   margin-right: auto;
 }

stylus/lost.styl

@@ -1,4 +1,4 @@
-// Lost Grid v5.1.3 - https://github.com/corysimmons/lost
+// Lost Grid v5.1.4 - https://github.com/corysimmons/lost
 
 $gutter = 30px
 $rtl = false
@@ -78,9 +78,10 @@ center($max-size = 1140px, $pad = 0, $flex = $flexbox)
     clearfix()
   else
     flex-container()
+  if $pad is not 0
+    padding-left: $pad
+    padding-right: $pad
   max-width: $max-size
-  padding-left: $pad
-  padding-right: $pad
   margin-left: auto
   margin-right: auto