diff -u b/core/themes/bartik/css/style.css b/core/themes/bartik/css/style.css
--- b/core/themes/bartik/css/style.css
+++ b/core/themes/bartik/css/style.css
@@ -1245,7 +1245,7 @@
   font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
   margin-bottom: 20px;
 }
-nav .tabs--primary {
+.tabs ul.primary {
   border-collapse: collapse;
   height: auto;
   line-height: normal;
@@ -1257,7 +1257,7 @@
   font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
   margin-bottom: 20px;
 }
-.tabs ul.primary {
+nav .tabs--primary {
   border-collapse: collapse;
   height: auto;
   line-height: normal;