I'm trying to style my navbar with some sass css variables that I came across on github. 

```
$navbar-default-link-color:                $dlu-blue !default;
$navbar-default-link-hover-color:          $dlu-dark-gray !default;
$navbar-default-link-hover-bg:             $dlu-light-gray !default;
$navbar-default-link-active-color:         $white !default;
$navbar-default-link-active-bg:            $dlu-dark-gray !default;

```

I want my navbar link backgrounds to turn light gray on hover and dark gray when visited and active. Right now, my links that are dropdown menus will turn dark gray, but my normal links do not change color when visited. I understand that's probably because visited is not a variable that I have listed above. Is there a $navbar-default-link-visited-bg variable out there? I did not see one on github or anywhere else.

When clicked on a dropdown, the background color changes correctly:
[![enter image description here](https://i.stack.imgur.com/EOfxM.png)](https://i.stack.imgur.com/EOfxM.png)

When I clicked on the home link, background color remains unchanged:
[![enter image description here](https://i.stack.imgur.com/zcPyn.png)](https://i.stack.imgur.com/zcPyn.png)

Thanks!