:where(.vaadin-themed-html table:not(.vaadin-unthemed-html), table.vaadin-themed-html) {
  /* The corner cells have to stay inside the table's own border. */
  --_inner-radius: max(0px, calc(var(--vaadin-radius-m) - 1px));

  background: var(--vaadin-background-color);
  border: 1px solid var(--vaadin-border-color);
  border-radius: var(--vaadin-radius-m);
  border-spacing: 0;

  caption {
    padding-block-end: var(--vaadin-gap-s);
    color: var(--vaadin-text-color-secondary);
    text-align: start;
  }

  :is(th, td) {
    padding: var(--vaadin-padding-block-container) var(--vaadin-padding-inline-container);
    /* The UA stylesheet centers <th>, which leaves a header out of line with
       the column below it. */
    text-align: start;
  }

  th {
    font-weight: var(--aura-font-weight-medium);
  }

  :is(thead, tfoot) :is(th, td) {
    background: var(--vaadin-background-container);
  }

  /* A line between every two consecutive rows, wherever the section boundary
     falls. Drawing it above a row rather than below one leaves the outer
     edges to the table's own border. */
  :where(tr:not(:first-child) :is(th, td)),
  :where(:is(thead, tbody, tfoot) ~ :is(tbody, tfoot) tr:first-child :is(th, td)) {
    border-block-start: 1px solid var(--vaadin-border-color);
  }

  /* Round the corner cells so that a header or footer background does not
     fill in the corners of the rounded border. */
  :where(thead:first-of-type tr:first-child :is(th, td):first-child) {
    border-start-start-radius: var(--_inner-radius);
  }

  :where(thead:first-of-type tr:first-child :is(th, td):last-child) {
    border-start-end-radius: var(--_inner-radius);
  }

  :where(:is(tbody, tfoot):last-of-type tr:last-child :is(th, td):first-child) {
    border-end-start-radius: var(--_inner-radius);
  }

  :where(:is(tbody, tfoot):last-of-type tr:last-child :is(th, td):last-child) {
    border-end-end-radius: var(--_inner-radius);
  }
}