Navigation/Menu changed styling

Hey there,

I just changed my header to ‘transparent’ when updating the website logo, and it appears to have changed the styling of the ‘below and to the left’ menu/navigation. See here.. http://www.anppcan.org/new/

Is there a simple way of returning the original styling (ie, the lines between the menu items, as seen http://www.anppcan.org/new/about/)??

Thanks so much :)