.bs-favorite-icon{position:relative}.bs-favorite-icon>img{background-color:#0000;width:100%;height:100%;transition:opacity .3s;position:absolute;top:0;left:0}.bs-favorite-icon .like-icon{opacity:1}.bs-favorite-icon .liked-icon,.bs-favorite-icon.favorited .like-icon{opacity:0}.bs-favorite-icon.favorited .liked-icon{opacity:1}