Logo placement navigation

Hi guys,

I'm in a bit of a pickle and would love some assistance.

currently working on http://whitlaw.kapowinteractive.com.au/
When you scroll down, a secondary navigation appears (http://prntscr.com/d9udrq), and it is sticky'd to the top of the website. My issue is that I want the logo to be o nthe left side for consistency. This is what i've currently done in the functions.php:
add_filter('wp_nav_menu_items','add_logo', 10, 3);
function add_logo( $items, $args ) {
if( $args->theme_location == 'secondary') {
$items .= '

  • <img src="/wp-content/uploads/2016/11/Whitsunday-Law-Logo.jpg" width="160">
  • ';
    }
    return $items;
    }

    It would be nice to prepend the logo as the first

  • element, or preferably, have the logo prepend before the navigation so it sits outside the
      element. Is there another filter i can hook into to achieve this? I feel i've exhausted all resources or don't know any other keywords to help me find what i'm looking for. Help would be greatly appreciated!