diff --git a/core/modules/contextual/css/contextual.theme.css b/core/modules/contextual/css/contextual.theme.css
index 8dc63b2..2b76857 100644
--- a/core/modules/contextual/css/contextual.theme.css
+++ b/core/modules/contextual/css/contextual.theme.css
@@ -8,12 +8,13 @@
  */
 .contextual {
   position: absolute;
-  right: 0; /* LTR */
-  top: 6px;
+  right: -6px; /* LTR */
+  top: 0;
   z-index: 500;
+  overflow: hidden;
 }
 [dir="rtl"] .contextual {
-  left: 0;
+  left: -6px;
   right: auto;
 }
 
@@ -38,13 +39,12 @@
   overflow: hidden;
   padding: 0 2px;
   position: relative;
-  right: 6px; /* LTR */
   cursor: pointer;
 }
 [dir="rtl"] .contextual .trigger {
   float: left;
   right: auto;
-  left: 6px;
+  left: 0;
 }
 .contextual.open .trigger {
   border: 1px solid #ccc;
@@ -68,7 +68,7 @@
   margin: 0;
   padding: 0.25em 0;
   position: relative;
-  right: 6px; /* LTR */
+  right: 0; /* LTR */
   text-align: left; /* LTR */
   top: -1px;
   white-space: nowrap;
@@ -76,7 +76,7 @@
 [dir="rtl"] .contextual-region .contextual .contextual-links {
   border-radius: 0 4px 4px 4px;
   float: left;
-  left: 6px;
+  left: 0;
   right: auto;
   text-align: right;
 }
diff --git a/core/themes/stable/css/contextual/contextual.theme.css b/core/themes/stable/css/contextual/contextual.theme.css
index 8dc63b2..2b76857 100644
--- a/core/themes/stable/css/contextual/contextual.theme.css
+++ b/core/themes/stable/css/contextual/contextual.theme.css
@@ -8,12 +8,13 @@
  */
 .contextual {
   position: absolute;
-  right: 0; /* LTR */
-  top: 6px;
+  right: -6px; /* LTR */
+  top: 0;
   z-index: 500;
+  overflow: hidden;
 }
 [dir="rtl"] .contextual {
-  left: 0;
+  left: -6px;
   right: auto;
 }
 
@@ -38,13 +39,12 @@
   overflow: hidden;
   padding: 0 2px;
   position: relative;
-  right: 6px; /* LTR */
   cursor: pointer;
 }
 [dir="rtl"] .contextual .trigger {
   float: left;
   right: auto;
-  left: 6px;
+  left: 0;
 }
 .contextual.open .trigger {
   border: 1px solid #ccc;
@@ -68,7 +68,7 @@
   margin: 0;
   padding: 0.25em 0;
   position: relative;
-  right: 6px; /* LTR */
+  right: 0; /* LTR */
   text-align: left; /* LTR */
   top: -1px;
   white-space: nowrap;
@@ -76,7 +76,7 @@
 [dir="rtl"] .contextual-region .contextual .contextual-links {
   border-radius: 0 4px 4px 4px;
   float: left;
-  left: 6px;
+  left: 0;
   right: auto;
   text-align: right;
 }