diff --git a/css/area_footnotes.less b/css/area_footnotes.less
index ee01717..c669420 100644
--- a/css/area_footnotes.less
+++ b/css/area_footnotes.less
@@ -42,7 +42,6 @@
 
 /* + + + + + + + + + + + + + + + + + + + + + + + + + + */
 /* footnotes in content  */
-sup,
 .main-content sup,
 .main-content > div > p sup,
 .main-content > div > ul > li .li sup {