.flex-parent {
    text-align: center;
    margin-bottom: 50px;
}

.flex-child {
    flex-basis: 100px;
}

.flex-grow1 {
    flex-grow: 1;
}

.flex-grow2 {
    flex-grow: 2;
}

.flex-grow3 {
    flex-grow: 3;
}

.flex-grow4 {
    flex-grow: 4;
}

.flex-grow5 {
    flex-grow: 5;
}

.flex-grow6 {
    flex-grow: 6;
}