Rule Definition
Presentational attributes mix style with structure and are deprecated.

Remediation
Move styling to CSS classes.

Violation Code Sample

<table bgcolor="#ffffff" border="1">
  <tr>
    <td align="center" valign="top" nowrap>Content</td>
  </tr>
</table>

Fixed Code Sample

<table class="table-default">
  <tr>
    <td class="cell-centered no-wrap">Content</td>
  </tr>
</table>

# CSS

.table-default {
  background-color: #ffffff;
  border: 1px solid #000;
  border-collapse: collapse;
}

.cell-centered {
  text-align: center;
  vertical-align: top;
}

.no-wrap {
  white-space: nowrap;
}

MDN – Obsolete and deprecated HTML attributes: https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes WHATWG HTML Living Standard – Obsolete attributes: https://html.spec.whatwg.org/multipage/obsolete.html W3C – Separation of structure and presentation (HTML vs CSS): https://www.w3.org/Style/CSS/Overview.en.html