fix (#4697)

p/themes/base-theme/frss.css

@@ -1116,7 +1116,7 @@ input[type="search"] {
 	position: static;
 }
 
-.flux_header:hover {
+.flux:hover {
 	position: relative;
 }
 

p/themes/base-theme/frss.rtl.css

@@ -1116,7 +1116,7 @@ input[type="search"] {
 	position: static;
 }
 
-.flux_header:hover {
+.flux:hover {
 	position: relative;
 }