diff --git a/core/themes/seven/css/components/vertical-tabs.css b/core/themes/seven/css/components/vertical-tabs.css
index 495cb2e..5613baf 100644
--- a/core/themes/seven/css/components/vertical-tabs.css
+++ b/core/themes/seven/css/components/vertical-tabs.css
@@ -32,6 +32,10 @@
   width: 100%;
   border-right: 1px solid #fcfcfa; /* LTR */
   box-shadow: 0 5px 5px -5px hsla(0, 0%, 0%, 0.3);
+  border-bottom: 1px solid #b3b2ad;
+}
+.vertical-tabs__menu-item.last {
+  border-bottom: none;
 }
 [dir="rtl"] .vertical-tabs__menu-item.is-selected {
   border-left: 1px solid #fcfcfa;
@@ -41,6 +45,9 @@
 .vertical-tabs__menu-item:active {
   z-index: 2;
 }
+.vertical-tabs__menu-item.is-selected:focus {
+  outline: none;
+}
 .vertical-tabs__menu-item a {
   display: block;
   padding: 10px 15px 15px;
@@ -60,8 +67,18 @@
   text-decoration: none;
 }
 .vertical-tabs__menu-item.is-selected a {
-  border-bottom-color: #b3b2ad;
   color: #004f80;
+  border-left: 4px solid #0074bd; /* LTR */
+  padding-left: 11px; /* LTR */
+  border-bottom: none;
+  outline: none;
+  text-decoration: none;
+}
+[dir=rtl] .vertical-tabs__menu-item.is-selected a {
+  border-left: 0;
+  border-right: 4px solid #0074bd;
+  padding-left: 15px;
+  padding-right: 11px;
 }
 .vertical-tabs__menu-item.is-selected a:hover,
 .vertical-tabs__menu-item.is-selected a:focus {