Navigation Bar Accent Font Colour

Hello,

Last year I wrote a post to have an accent colour of the colour customizer for my navigation bar, but for the font to be white when on the page of a particular menu item or when a menu item was hovered over.

I got a reply with the following code: #main-wrapper #main-nav > li > a:hover, #main-wrapper #main-nav > li.current-menu-item > a { color: #ffffff !important; }, but now after updating Highend the code no longer works! Can anyone help me on that?