content/browser/resources/attribution_reporting/attribution_internals_table.html

<style>
  :host {
    background-color: #fff;
    border-color: rgba(0,0,0,.12);
    border-radius: 4px;
    border-style: solid;
    border-width: 1px;
    display: block;
    overflow-x: scroll;
  }

  table {
    border: 0;
    border-collapse: collapse;
  }

  tbody tr {
    border-top-color: rgba(0,0,0,.12);
    border-top-style: solid;
    border-top-width: 1px;
  }

  thead tr {
    border: 0;
  }

  table td,
  table th {
    padding-inline-end: 16px;
    padding-inline-start: 16px;
  }

  th[aria-sort] {
    cursor: pointer;
  }

  th[aria-sort]::after {
    content: '⬍';
  }

  th[aria-sort='ascending']::after {
    content: '⬆';
  }

  th[aria-sort='descending']::after {
    content: '⬇';
  }

  .send-error {
    background-color: rgb(250,199,192);
  }

  .debug-url {
    color: rgb(66,135,245);
    font-weight: bold;
  }
</style>
<table>
  <thead>
    <tr></tr>
  </thead>
  <tbody></tbody>
</table>