/* .pic {
    transition: opacity 1.2s linear;
} */

@keyframes animb {
    0% {filter: sepia(0.5) saturate(0.8) opacity(0);}
    33% {filter: sepia(0.5) saturate(0.8) opacity(0.33);}
    66% {filter: sepia(0.5) saturate(1) opacity(0.66);}
    100% {filter: sepia(0) saturate(1.2) opacity(1);}
}

@keyframes animf {
    0% {filter: sepia(0) saturate(1.2) opacity(1);}
    33% {filter: sepia(0)  saturate(1) opacity(0.66);}
    66% {filter: sepia(0.5)  saturate(0.8) opacity(0.33);}
    100% {filter: sepia(0.5)  saturate(0.8) opacity(0);}
}