diff --git a/less/_07-responsive.less b/less/_07-responsive.less
index a5bf612..9899700 100644
--- a/less/_07-responsive.less
+++ b/less/_07-responsive.less
@@ -14,9 +14,9 @@ button:focus {
 	background-image: none;
 }
 
-.btn::-­moz-­focus-­inner,
-input::-­moz-­focus-­inner,
-button::-­moz-­focus-­inner {
+.btn::-moz-focus-inner,
+input::-moz-focus-inner,
+button::-moz-focus-inner {
 	border: 0;
 }
 
@@ -270,25 +270,6 @@ button::-­moz-­focus-­inner {
 		padding: 0 !important;
 	}
 
-	/* grid rwd for small screens */
-	.grid3 > *,
-	.grid4 > *,
-	.grid5 > *,
-	.grid6 > *,
-	.grid8 > *,
-	.grid10 > *,
-	.grid12 > * {
-		width: 50%;
-	}
-
-	/* autogrid rwd for small screens */
-	.autogrid5 > *,
-	.autogrid6 > *,
-	.autogrid8 > *,
-	.autogrid10 > *,
-	.autogrid12 > * {
-		width: 49% !important;
-	}
 }
 
 /* ---------------------------------- */
@@ -406,13 +387,4 @@ button::-­moz-­focus-­inner {
 		padding: 0 !important;
 	}
 
-	/* grid rwd for tiny screens */
-	.grid > * > * {
-		width: 100% !important;
-	}
-
-	/* autogrid rwd for tiny screens */
-	[class*="autogrid"] > * {
-		width: 100% !important;
-	}
 }
diff --git a/sass/_07-responsive.scss b/sass/_07-responsive.scss
index 0de4de6..f108e67 100644
--- a/sass/_07-responsive.scss
+++ b/sass/_07-responsive.scss
@@ -14,9 +14,9 @@ button:focus {
 	background-image: none;
 }
 
-.btn::-­moz-­focus-­inner,
-input::-­moz-­focus-­inner,
-button::-­moz-­focus-­inner {
+.btn::-moz-focus-inner,
+input::-moz-focus-inner,
+button::-moz-focus-inner {
 	border: 0;
 }
 
@@ -269,25 +269,6 @@ button::-­moz-­focus-­inner {
 		padding: 0 !important;
 	}
 
-	/* grid rwd for small screens */
-	.grid3 > *,
-	.grid4 > *,
-	.grid5 > *,
-	.grid6 > *,
-	.grid8 > *,
-	.grid10 > *,
-	.grid12 > * {
-		width: 50%;
-	}
-
-	/* autogrid rwd for small screens */
-	.autogrid5 > *,
-	.autogrid6 > *,
-	.autogrid8 > *,
-	.autogrid10 > *,
-	.autogrid12 > * {
-		width: 49% !important;
-	}
 }
 
 /* ---------------------------------- */
@@ -405,13 +386,4 @@ button::-­moz-­focus-­inner {
 		padding: 0 !important;
 	}
 
-	/* grid rwd for tiny screens */
-	.grid > * > * {
-		width: 100% !important;
-	}
-
-	/* autogrid rwd for tiny screens */
-	[class*="autogrid"] > * {
-		width: 100% !important;
-	}
 }