diff --git a/_sass/addon/commons.scss b/_sass/addon/commons.scss
index c2e93c0..f664234 100644
--- a/_sass/addon/commons.scss
+++ b/_sass/addon/commons.scss
@@ -740,12 +740,12 @@ $sidebar-display: "sidebar-display";
 
     @for $i from 1 through $tab-count {
       $offset: $tab-count - $i;
-      $top: -$offset * $tab-height + $tab-cursor-height / 2;
+      $top: -$offset * $tab-height + ($tab-height - $tab-cursor-height) / 2;
 
       @if $i < $tab-count {
         > li.active:nth-child(#{$i}),
         > li.nav-item:nth-child(#{$i}):hover {
-          ~li:last-child::after {
+          ~ li:last-child::after {
             @include fix-cursor($top);
           }
         }