html{height:100%}body{flex-direction:column;min-height:100vh;margin:0}#root,body{display:flex}#root{flex:1;flex-direction:column}.main-content{flex:1}.nav-link-gonjong{position:relative}.nav-link-gonjong:after{content:"";position:absolute;bottom:2px;left:12px;right:12px;height:2px;border-radius:2px;background-color:#c89b3c;transform:scaleX(0);transform-origin:center;transition:transform .3s ease-in-out}.nav-link-gonjong.active:after,.nav-link-gonjong:hover:after{transform:scaleX(1)}