As I said, originally it read
nav .menu ul.sub-menu .sub-menu, nav .menu ul.sub-menu .sub-menu li, nav .menu ul.sub-menu .sub-menu li a {
background-color: #FFFFFF!important;
background: #FFFFFF!important;
}
but that was totally white.
The website is http://www.lifeisbalance.co.uk/
Thanks