diff --git a/css/rwd.css b/css/rwd.css
index 14db66f..f301589 100644
--- a/css/rwd.css
+++ b/css/rwd.css
@@ -83,13 +83,6 @@
 @media (max-width: 768px) {
 
 	/* quick tablet reset */
-	.w60,
-	.w66,
-	.w70,
-	.w75,
-	.w80,
-	.w90,
-	.w100,
 	.w600p,
 	.w700p,
 	.w800p,
diff --git a/less/knacss.less b/less/knacss.less
index 307835a..f1363a7 100644
--- a/less/knacss.less
+++ b/less/knacss.less
@@ -685,13 +685,6 @@ textarea {
 @media (max-width: @smallscreen) {
 
 	/* quick tablet reset */
-	.w60,
-	.w66,
-	.w70,
-	.w75,
-	.w80,
-	.w90,
-	.w100,
 	.w600p,
 	.w700p,
 	.w800p,