Mobile Dropdown Hover Background Color CSS

Theme: Funding Press
URL: http://www.wildgearhq.com/shop/

I would like to change the background/hover color of the selected menu item on the dropdown menu of the mobile version of the website. AKA the mobile navbar.

I tried using this code but it didn’t work.

/*BACKGROUND color for active*/
div .navbar-default .navbar-nav > .active > a, .navbar-default .navbar-nav > .active >
a:hover, .navbar-default .navbar-nav > .active > a:focus {
color: white;
background-color: #FFFFFF;
}