diff --git a/css/ColumnSet.styl b/css/ColumnSet.styl
index 18786a833..f20c9677b 100644
--- a/css/ColumnSet.styl
+++ b/css/ColumnSet.styl
@@ -2,7 +2,6 @@
 	overflow: hidden;
 	width: 100%;
 	position: relative; // This is needed because we set position: relative on cells in the grid for focus in IE7
-	height: 100%;
 	// On touch devices, disable default X-axis drag behavior but allow vertical scrolling
 	-ms-touch-action: pan-y;
 	touch-action: pan-y;
diff --git a/css/dgrid.css b/css/dgrid.css
index e991dd2ed..5b3fc1755 100644
--- a/css/dgrid.css
+++ b/css/dgrid.css
@@ -141,7 +141,6 @@ html.has-mozilla .dgrid-focus {
   overflow: hidden;
   width: 100%;
   position: relative;
-  height: 100%;
   -ms-touch-action: pan-y;
   touch-action: pan-y;
 }