diff --git a/src/_Grid.sass b/src/_Grid.sass
index 67bff4b..e266d83 100644
--- a/src/_Grid.sass
+++ b/src/_Grid.sass
@@ -69,9 +69,15 @@
 		&.column-offset-34
 			margin-left: 33.3333%
 
+		&.column-offset-40
+			margin-left: 40%
+
 		&.column-offset-50
 			margin-left: 50%
 
+		&.column-offset-60
+			margin-left: 60%
+
 		&.column-offset-66,
 		&.column-offset-67
 			margin-left: 66.6666%