chromium/third_party/blink/web_tests/external/wpt/css/css-tables/border-conflict-resolution.html

<!doctype html>
<title>CSS Test: Table border resolution rules</title>
<link rel="author" href="mailto:[email protected]" title="Emilio Cobos Álvarez">
<link rel="author" href="https://mozilla.org" title="Mozilla">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1520138">
<link rel="help" href="https://drafts.csswg.org/css2/tables.html#border-conflict-resolution">
<link rel="match" href="border-conflict-resolution-ref.html">
<style>
  table {
    font-size: 2em;
    border-collapse: collapse;
    border: 5px solid green;
  }
</style>

<p>You should see no non-solid borders and no red.</p>

<table>
  <tr>
    <td colspan="4" style="border: 5px solid purple;">hello</td>
  </tr>
  <tr>
    <td style="border-top: 5px solid blue; border-right: 5px solid blue; border-bottom: 9px hidden red; border-left: 9px none;">one</td>
    <td style="border-top: 5px dashed blue; border-right: 5px solid blue; border-bottom: 5px outset red;">two</td>
    <td style="border-top: 5px ridge blue; border-right: 5px ridge red; border-bottom: 5px inset red;">three</td>
    <td style="border-left: 5px solid blue; border-bottom: 5px dotted red;">four</td>
  </tr>
</table>