Global - Header Nav Appear Second Logo

/*START - header nav- appear second logo when scrolled*/
nav#global-navbar.scroll{
    .header{
        a.logo__link img{
            &:last-child{
                display:block!important;
            }
            &:first-child{
                display: none!important;
            }
        }
    }
}
/*END - Header nav- appear second logo when scrolled*/