.nav-item{font-size:15px}.nav-item:after{content:"";width:100%;height:0;display:block;transition:transform .2s ease-out,opacity .2s ease-out;opacity:0;border:0 solid transparent;border-top:2px solid}.nav-item:hover:after{transform-origin:left;opacity:1;transform:scaleX(1)}.nav-item--active:after{opacity:1}