.serial-hint {
    margin: 0.4rem 0 0;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.4;
}

.serial-hint p {
    margin: 0 0 0.2rem;
}

.serial-hint ul {
    margin: 0;
    padding-left: 1.15rem;
}

.serial-hint li {
    margin: 0.08rem 0;
}

#serial {
    max-width: 12rem;
}