diff --git a/skyquake/plugins/composer/src/src/styles/EditConfigParameterMap.scss b/skyquake/plugins/composer/src/src/styles/EditConfigParameterMap.scss
index 58cf6a2..f0407d6 100644
--- a/skyquake/plugins/composer/src/src/styles/EditConfigParameterMap.scss
+++ b/skyquake/plugins/composer/src/src/styles/EditConfigParameterMap.scss
@@ -66,7 +66,7 @@
 		    	    flex: 1 1 100%;
 		    	display:-ms-flexbox;
 		    	display:flex;
-		    	&:nth-child(2) {
+		    	&:nth-child(even) {
 		    		background: $panel-bg-color-contrast;
 		    	}
 		    }