diff -u b/core/modules/views_ui/css/views_ui.admin.theme.css b/core/modules/views_ui/css/views_ui.admin.theme.css
--- b/core/modules/views_ui/css/views_ui.admin.theme.css
+++ b/core/modules/views_ui/css/views_ui.admin.theme.css
@@ -1148,12 +1148,12 @@
 
 .views-ui-display-tab-bucket .dropbutton-wrapper {
   position: absolute;
-  right: 5px;
+  right: 5px; /* LTR */
   top: 4px;
 }
 [dir="rtl"] .views-ui-display-tab-bucket .dropbutton-wrapper {
   left: 5px;
-  right:auto;
+  right: auto;
 }
 
 .views-ui-display-tab-bucket .dropbutton-wrapper .dropbutton-widget .dropbutton-action a {