div.timeline td {
    border: 1px solid #000;
    padding: 0.2rem;
}
div.timeline tr:not(:first-child):not(:nth-child(2)):not(:last-child) td {
    border-top: none;
    border-bottom: none;
}
div.timeline tr:nth-child(2) td {
    border-bottom: none;
}
div.timeline tr:last-child td {
    border-top: none;
}
div.timeline tr:first-child td {
    text-align: center;
}
div.timeline td:first-child {
    text-align: right;
}