emacs-config/misc/org-css/_table.scss

div.table {
  position: relative;
  .gutter {
    left: calc(20px - 2.5rem);
    padding-top: 18px;
  }
  .tabular {
    max-width: 100%;
    overflow-x: auto;
  }
}

table {
  border-color: $text-light;
  border-left: transparent;
  border-right: transparent;
  border-style: solid;
  border-width: 2px;
  border-collapse: collapse;
  font-size: 15px;
  font-family: $sans-font;
  margin: 20px;
  padding: 20px;

  thead {
    @include light-meta();
    font-size: 15px;
    tr th {
      padding: 4px 10px;
      background-color: #9991;
    }
    tr:last-of-type th {
      border-bottom: solid 1px $text-light;
    }
  }
  
  tr,th,td {
    border: none;
  }

  tbody tr td {
    border-top: 0;
    padding: 0 10px;
  }

  tr {
    line-height: 1.9;
  }

  caption {
    .table-number {
      @include light-meta();
    }
    margin-bottom: 10px;
    @include light-para(15px);
  }
}