diff --git a/css/dev-common.css b/css/dev-common.css
index 881d2cf..015f6f2 100644
--- a/css/dev-common.css
+++ b/css/dev-common.css
@@ -276,14 +276,11 @@ Classes:
 	box-sizing: border-box;
 }
 
-.collapsed {
+.footnotes_reference_container .collapsed,
+.footnote_reference_container_collapse_button.collapsed {
 	display: none;
 }
 
-.unfolded {
-	display: inline;
-}
-
 /**
  * Reference container label.
  *