Developer-Guide/standards/html.md

Html

All html has to be html 5 compliant.

Omitted closing tags

The following closing tags SHOULD be omitted:

• </li>
• </option>
• </tr>
• </td>
• </th>
• </thead>
• </tbody>
• </tfoot>
• </head>
• </body>
• </html>

The following tags MUST not specify a end tag (\):

• <br \>
• <meta \>
• <input \>
• <hr \>
• <img \>
• <link \>
• <source \>
• <embed \>

Accessible Rich Internet Applications

All modules and themes SHOULD be WAI-ARIA 2.0 compliant. For further reading please refer to https://www.w3.org/TR/WCAG20-TECHS/aria.

Structured Data (Microdata)

For structured data https://schema.org/ SHOULD be used.