Fix scrolling tabs

app/assets/stylesheets/framework/blocks.scss

@@ -210,6 +210,12 @@
     .nav-links {
       justify-content: center;
+      width: 100%;
+      float: none;
+
+      &.scrolling-tabs {
+        float: none;
+      }
     }
   }

app/assets/stylesheets/framework/secondary-navigation-elements.scss

@@ -11,6 +11,8 @@
     display: flex;
     a {
+      padding: $gl-btn-padding;
+      padding-bottom: 11px;
       font-size: 14px;
       line-height: 28px;
       color: $gl-text-color-secondary;