.nav-bar .links{position:relative}.nav-bar .links:after{content:"";position:absolute;left:0;bottom:-10px;width:100%;height:1.5px;background:var(--white);transform:scaleX(0);transform-origin:left;transition:transform .3s ease-in-out}.nav-bar .links.active:after,.nav-bar .links:hover:after{transform:scaleX(1)}.header-fixed .nav-bar .links:after{background:#000}