a.leftnav{color:#142b6e;display:inline-block;margin-bottom:20px;text-decoration:none;position:relative}a.leftnav:hover{color:#5ab591}a.leftnav::after{position:absolute;width:0;bottom:0;left:0;background-color:#142b6e;content:"";height:2px;-webkit-transition:width .1s ease-in-out;-moz-transition:width .1s ease-in-out;-o-transition:width .1s ease-in-out;transition:width .1s ease-in-out}a.leftnav:hover::after{width:100%;background-color:#5ab591}