message: tweaking table styles
diff: @@ -216,14 +216,13 @@ table {
  margin: 2em 0;
  overflow-x: auto;
  width: 100%;
  + display: inline-table;
  }
  table,
  td,
  th {
  border-collapse: collapse;
  - border-color: var(--line-rule-color);
  - border-style: solid;
  }
  td,
  @@ -234,6 +233,10 @@ th {
  text-align: left;
  }
  +thead th:empty {
  + display: none;
  +}
  +
  thead th,
  tbody tr:nth-child(even) {
  background-color: var(--ifm-table-stripe-background);
  