diff --git a/core/modules/contextual/contextual.theme.css b/core/modules/contextual/contextual.theme.css
index aca019c..6dcb432 100644
--- a/core/modules/contextual/contextual.theme.css
+++ b/core/modules/contextual/contextual.theme.css
@@ -11,6 +11,10 @@
   right: 0; /* LTR */
   top: 2px;
   z-index: 999;
+  overflow: hidden;
+}
+.contextual-region-active .contextual {
+  overflow: visible;
 }
 .contextual-region-active {
   outline: 1px dashed #d6d6d6;