#top-menu li a::before{content:"";position:absolute;z-index:-2;left:0;right:100%;bottom:0;background:#F89AD2;height:5px;transition:right 0.3s ease-out}#top-menu li a:hover::before{right:0}#top-menu li a:hover:before{right:0}#top-menu li li a:before{bottom:0%}