.nav-link{position:relative;padding:0 15px}.nav-link,.nav-link span,.nav-link:before{transition:all .5s}.nav-link:before{content:"";position:absolute;bottom:0;left:0;width:100%;height:100%;opacity:0;border-bottom:1px solid rgba(255,255,255,.5);transform:scaleX(.1)}.nav-link:hover span{letter-spacing:2px}.nav-link:hover:before{opacity:1;transform:scale(1)}