caption {
  text-align: center;
  font-weight: bold;
}

table.auto-width {
  width: auto;
}

th {
  text-align: center;
}

td.numeric-cell {
  text-align: right;
}

/**
 * Responsive tables.
 */
@media screen and (max-width: 37.5em) { /* 600px */
  th.priority-low,
  td.priority-low,
  th.priority-medium,
  td.priority-medium {
    display: none;
  }
}
@media screen and (max-width: 60em) { /* 920px */
  th.priority-low,
  td.priority-low {
    display: none;
  }
}