@keyframes release{0%{opacity:0}to{opacity:1}}@keyframes release-with-delay{0%{opacity:0}50%{opacity:0}to{opacity:1}}@keyframes upDown{0%{transform:translateY(0)}50%{transform:translateY(-15%)}}@keyframes upDownCenter{0%{transform:translate(-50%)}50%{transform:translate(-50%,-15%)}}.book-card{filter:grayscale();border:1px solid #ddd;transition:all .1s ease-in;display:inline-block}.book-card:hover{filter:grayscale(0)}