Underline current tab

_includes/header.html

@@ -41,7 +41,11 @@
 
             {%- for my_page in my_pages -%}
               {%- if my_page.title -%}
+                {%- if page.url == my_page.url -%}
+              <a class="page-link active" href="{{ my_page.url | relative_url }}">{{ my_page.title | escape }}</a>
+                {% else %}
               <a class="page-link" href="{{ my_page.url | relative_url }}">{{ my_page.title | escape }}</a>
+                {%- endif -%}
               {%- endif -%}
             {%- endfor -%}
           </div>

_sass/minima/_layout.scss

@@ -44,6 +44,10 @@
     display: none;
   }
 
+  .active {
+      text-decoration: #333 underline solid;
+  }
+
   .page-link {
     color: $text-color;
     line-height: $base-line-height;