diff --git a/src/scss/_variables.scss b/src/scss/_variables.scss
index 32b335b..6f662cd 100644
--- a/src/scss/_variables.scss
+++ b/src/scss/_variables.scss
@@ -4,6 +4,9 @@
 
 $container-page-width: 1200px !default;
 
+$gutter: 30px;
+
+$gutter-half: $gutter / 2;
 
 // colours
 $darkgray: #000000;