blockscout/assets/css/explorer/_table.scss

%table {
  width: 100%;
  max-width: 100%;
  margin-bottom: 1rem;

  > thead,
  > tbody,
  > tfoot {
    > tr {
      > th { text-align: left; }

      > th,
      > td {
        padding: explorer-size(-2) 0;
        line-height: 1rem;
      }
    }
  }

  > thead > tr > th {
    border-bottom: 2px solid explorer-color("slate", "900");
  }
}