#div-card{
    display: flex;
    flex-wrap: wrap;
}
#img-card{
    width: 110px;
    flex: 0 0 calc(100% * (1/2) - 16px);
}
@media all and (min-width:768px) {
    #img-card {
        flex: 0 0 calc(100% * (1/3) - 16px);
    }
}
@media all and (min-width:992px) {
    #img-card {
        flex: 0 0 calc(100% * (1/4) - 16px);
    }
}