.flexColumn {
    display:flex;
    flex-direction:column;
    align-items:center;
}


.flexRow {
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
}

.error {
    color:red;
}

.busyDIV svg {
    vertical-align: text-top;
    height:1em;
    width:1em;
}


footer {
    text-align:center;
    margin:3em;
}