default.css.scss in pageflow-progress-navigation-bar-0.2.0

- old
+ new

@@ -286,10 +286,10 @@
       height: 100%;
       width: 100%;
       background-color: $nav-dot-even;
       border-bottom: 1px solid $nav-bg-color;
       border-bottom: 1px solid $nav-bg-color-transparent;
-      box-sizing: border-box;
+      @include box-sizing(border-box);
 
       &.in_active_chapter {
         background-color: $nav-active-chapter;
       }
 
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