diff --git a/misc/vertical-tabs.css b/misc/vertical-tabs.css
index 10e8153..197fb5f 100644
--- a/misc/vertical-tabs.css
+++ b/misc/vertical-tabs.css
@@ -19,9 +19,12 @@
   padding: 0 1em;
   border: 0;
 }
-.vertical-tabs legend {
+fieldset.vertical-tabs-pane legend {
   display: none;
 }
+fieldset.vertical-tabs-pane fieldset legend {
+  display: block;
+}
 
 /* Layout of each tab */
 .vertical-tabs ul.vertical-tabs-list li {
diff --git a/themes/seven/vertical-tabs.css b/themes/seven/vertical-tabs.css
index 4f66222..31d21d4 100644
--- a/themes/seven/vertical-tabs.css
+++ b/themes/seven/vertical-tabs.css
@@ -8,7 +8,7 @@
   margin: 10px 0;
   position: relative;
 }
-div.vertical-tabs fieldset {
+fieldset.vertical-tabs-pane {
   border: 0;
   padding: 0;
   margin: 0;
@@ -69,9 +69,12 @@
   margin: 0 0 0 265px; /* LTR */
   padding: 10px 15px 10px 0; /* LTR */
 }
-div.vertical-tabs .vertical-tabs-panes legend {
+fieldset.vertical-tabs-pane legend {
   display: none;
 }
+fieldset.vertical-tabs-pane fieldset legend {
+  display: block;
+}
 .vertical-tabs-pane .fieldset-wrapper > div:first-child {
   padding-top: 5px;
 }