.card-group>.card {
    flex: unset;
    min-width: 200px;
    max-width: 200px;
    margin-bottom: 10px;
}
.card-group>.card+.card {
    margin-left: 0;
    border-left: 1px solid rgba(0,0,0,.125);
}
.card-group {
    justify-content: space-between;
}