.open{max-height:1000px;opacity:1;overflow-y:auto}.close{max-height:0;opacity:0;overflow-y:hidden}.slidedown{animation:slidedown .25s ease-in-out forwards}.slideup{animation:slideup .25s ease-in-out forwards}@keyframes slidedown{0%{max-height:0;opacity:0;overflow-y:hidden}to{max-height:1000px;opacity:1;overflow-y:auto}}@keyframes slideup{0%{max-height:1000px;opacity:1;overflow-y:auto}to{max-height:0;opacity:0;overflow-y:hidden}}