diff --git a/qt/aqt/data/web/css/editor.scss b/qt/aqt/data/web/css/editor.scss
index 96cb770e6..6a78d8ea1 100644
--- a/qt/aqt/data/web/css/editor.scss
+++ b/qt/aqt/data/web/css/editor.scss
@@ -119,7 +119,11 @@ button.highlighted {
     }
 
     #topbutsright & {
-        border-bottom: 3px solid #000;
+        border-bottom: 3px solid black;
+    }
+
+    .nightMode #topbutsright & {
+        border-bottom: 3px solid white;
     }
 }