Update AdvBanner.css

Author: medyo

src/features/adv/components/AdvBanner.css

@@ -56,8 +56,7 @@
   right: 0;
 }
 
-.banneradv .hidden,
-.carbonCoverTarget .hidden {
+.blockRow .hidden {
   width: 0;
   height: 0;
   display: none;