header{animation:slideInUp .25s ease-out;transition:all .5s}header.is-sticky{animation:slideInDown .5s ease-out;position:fixed;transition-delay:.35s}header .header-navigation{transition:.5s ease-in-out}header .header-navigation.active{bottom:0;right:0;top:0}header .header-navigation-items a{position:relative}header .header-navigation-items a:before{bottom:0;content:"";height:2px;left:0;opacity:0;position:absolute;width:0}header .hamburger{transition:all .5s ease}header .hamburger.active-nav,header .hamburger.active-nav span{transition:.5s ease-in-out;transition-delay:.25s}header .hamburger.active-nav span{background-color:#fff}