.stack-card{position:sticky;top:80px;z-index:1;transition:all 0.3s ease}.stack-card .et_pb_column{border-radius:24px;overflow:hidden}.stack-card:nth-child(1){z-index:1}.stack-card:nth-child(2){z-index:2}.stack-card:nth-child(3){z-index:3}.stack-card:nth-child(4){z-index:4}