.ancestorsdb-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1em;
    vertical-align: top;
}
.ancestorsdb-table th,
.ancestorsdb-table td,
.ancestorsdb-table th:first-child,
.ancestorsdb-table td:first-child {
    border: 1px solid #ccc;
    padding: 0.5em;
    text-align: left;
}
.ancestorsdb-table th {
    background-color: #f4f4f4;
}