.flex {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    /* align-items: center; */
}
.flex-item {
    margin-top: auto;
    margin-bottom: auto;
}
.tb-nowrap {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
}

.bt-space {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}