To add special characters like subscript and superscript in Odoo 17's website, you can directly insert HTML entities or use inline CSS styling. Here are a few methods to accomplish this, especially if you’re editing the HTML of website pages or blocks:

Odoo’s website editor accepts standard HTML entities, so you can manually add subscript and superscript characters using the appropriate HTML tags:

• Superscript: Wrap the text in ^....
• Subscript: Wrap the text in _....

Example:

If you’re editing the HTML directly, you can insert:

<p>H<sub>2</sub>O is water, and E = mc<sup>2</sup> is Einstein's equation.</p>

This will render:

• "H₂O" (H₂ as subscript)
• "E = mc²" (² as superscript

Hope this helps

Daniel