black theme css header nav

<style>
@media only screen and (min-width:849px){
nav#global-navbar div.header{
    background-color: transparent!important;
}
nav#global-navbar div.header.scroll {
 background-color: #fff!important;
}
nav#global-navbar .logo__img.light {
    display: none!important;
}
nav#global-navbar .logo__img.dark {
    display: block!important;
}
nav#global-navbar div.header .hamburger {
    color: #000;
}
nav#global-navbar div.header .hamburger span{
    background-color: #000;
}
nav#global-navbar div.header .hamburger span:before{
    background-color: #000;
}
nav#global-navbar div.header .hamburger span:after{
    background-color: #000;
}
nav#global-navbar div.header .navigation__link {
    color: #000;
}
nav#global-navbar div.header .navigation__link:after {
    background-color: #000;
}
}
</style>