sidebar header nav menu hover color

Hi I've placed my menu in the header right and the hover color seems to be black but i'd like it to be blue This is the code i currently have added. .sidebar-header-right .widget_nav_menu .sub-menu a, .sidebar-header-right .widget_nav_menu .sub-menu .sub-menu { border-color: #00316; } .sidebar-header-right .widget_nav_menu .sub-menu a { background-color: #f8fbff; color: #fff; } I'd send a screenshot but don't see an option to add. My url is divinelydog.com Thanks Martha