.inset-border:after{border-bottom:2px solid #000;content:"";display:block;height:100%;left:0;position:absolute;top:0;transform:scaleX(0);transform-origin:0 50%;transition:transform .25s ease-in-out;width:100%}.inset-border:hover:after{transform:scaleX(1)}.inset-selected-button{box-shadow:inset 0 -2px #225f6d}.inset-hover-button:hover{box-shadow:inset 0 -2px #dadada}