.category-button{position:relative;padding:10px 0;background:transparent;border:none;cursor:pointer}.category-button a{text-decoration:none}.category-button .category-underline{position:absolute;left:0;right:0;bottom:0;height:2px;background-color:currentColor;display:block;transform:scaleX(0)}.category-button.current .category-underline{transform:scaleX(1)}