.flex-box-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.flex-box-center-column {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-flow: column;
}

.flex-box-content-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}