If you are in a widget, Field, or Action that accepts HTML these tags are the only HTML tags Onit will accept.
Basic Formatting
<b></b>
<strong></strong>
<i></i>
<em></em>
<del></del>
<strike></strike>
<u></u>
<br></br>
<p></p>
<big></big>
<small></small>
Click to copy
Links
<a></a>
<nav></nav>
Click to copy
More Advanced Formatting
<blockquote></blockquote>
<section></section>
<h1></h1> (Also h2, h3, h4, h5, h6)
<header></header>
<footer></footer>
<aside></aside>
<article></article>
<details></details>
<textarea></textarea>
<pre></pre>
<code></code>
<mark></mark>
<cite></cite>
<sup></sup>
<sub></sub>
<span></span>
<time></time>
<canvas></canvas>
<progress></progress>
<hr></hr>
Click to copy
Lists
<ul></ul>
<ol></ol>
<li></li>
<dl></dl>
<dt></dt>
<dd></dd>
Click to copy
Tables
<table></table>
<tr></tr>
<td></td>
<th></th>
<tbody></tbody>
<thead></thead>
<tfoot></tfoot>
Click to copy
Images
<figure></figure>
<figcaption></figcaption>
<img></img>
<source></source>
Click to copy
Video and Audio
<video></video>
<track></track>
<audio></audio>
<iframe></iframe>
<object></object>
<embed></embed>
<param></param>
Click to copy
Forms and Menus
<form></form>
<input></input>
<button></button>
<select></select>
<option></option>
<datalist></datalist>
<output></output>
<fieldset></fieldset>
<legend></legend>
<hgroup></hgroup>
<label></label>
Click to copy