.navbar{transition:all .3s ease-out}.navbar.navbar-dark.bg-dark{background:rgba(33,37,41,.9) !important}.header-hidden{transform:translateY(-8rem)}.bg-dark-1{animation:fadein .5s forwards}.bg-dark-0{animation:fadein .5s reverse forwards}@keyframes fadein{0%{background-color:rgba(33,37,41,0)}100%{background-color:rgba(33,37,41,.9)}}