form {
    --textarea-height: 6em;
    --label-height: 1.5em;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    padding-top: 2em;
    padding-bottom: 2em;
    height: calc(9 * 1.5 * var(--label-height) + var(--textarea-height));
}