Main menu colour urgent

I have this coding that has been given to me i want all of the pink on all pages changed please and the borders so what CSS do I use?

#core_menu_wrapper .navbar-nav > li a {
font-family: ‘Lato’, sans-serif;
color:#ffffff;
}

#core_menu_wrapper .navbar-nav > li a {
background-color: #CCCCCC;
}
#core_menu_wrapper .navbar-collapse {
background-color: #CCCCCC;
}

#core_menu_wrapper .navbar-nav > li {
border: 1px solid #CCCCCC !important;
}
#core_menu_wrapper .navbar {
background: #CCCCCC;
}
.panel-default > .panel-heading {
background: #CCCCCC;
}