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Language:
English
Series:
Part 17 of Tech Tutorials for Ao3
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Published:
2026-04-26
Updated:
2026-04-26
Words:
426
Chapters:
1/4
Comments:
5
Kudos:
7
Bookmarks:
6
Hits:
152

The Commenter's Guide to AO3

Summary:

A 5-minute guide for making comments more interesting with HTML.

Bookmark to use this blurb as a reference.
Quoting

Paragraph(s)

<blockquote>☻</blockquote>

Short

<q>☻</q>
Collapsibles

Open

<details open><summary>☻</summary>☻</details>

Closed

<details><summary>☻</summary>☻</details>
Links
<a href="☻">☻</a>
Lists

Ordered

<ol>
<li>☻</li>
</ol>

Unordered

<ul>
<li>☻</li>
</ul>
Text
<strong>bold☻</strong>
<em>italic☻</em>
<u>underline☻</u>
<s>strike☻</s>
Images
<img src="☻" alt="☻"/>

Notes:

(See the end of the work for notes.)

Chapter 1: The 5 Minute Reference Guide

Chapter Text

Every other HTML reference guide I've seen is aimed at authors, or the HTML tryhard crowd. Or tries to cover every element allowed. But there's so much you can do in comments with a handful of HTML elements.

Instructions: Replace the ☻ with your content. To see placeholders, turn on styling.

Quoting Fic

When complimenting an author, its often nice to quote the part you're referencing. it to others.)

Paragraph Quotes

<blockquote>☻</blockquote>

Short Quotes

<q>☻</q>
Collapsibles

Open by default

<details open="open"><summary>☻</summary>☻</details>

Closed by default

<details><summary>☻</summary>☻</details>
Links
<a href="☻">☻</a>

You can not only link to other sites, but also to chapters of the work, other comments, and more!

A future chapter will cover everything you can do with links.

Lists

Ordered (Numbered)

<ol>
<li>☻</li>
</ol>

Unordered (Bullet)

<ul>
<li>☻</li>
</ul>
Text Formatting
<strong>☻</strong>
<em>☻</em>
<u>☻</u>
<s>☻</s>
<small>☻</small>
<big>☻</big>
<center>☻</center>
*Images

Replace the content of src with the location of your image. The location of the image is the URL in the search bar if you click the image.

The alt attribute isn't required, but its useful for cases where the image doesn't display, and for screen readers. (And useful for your own reference!)

<img src="☻" alt="☻"/>

To test it, you can use /images/skins/iconsets/default/icon_user.png or /images/ao3_logos/logo_42.png for the src attribute.

*Previously ao3 has disabled images in comments. This has been done and undone as part of anti-spam efforts.

Although most of this HTML can also be used in bookmark blurbs, images do not appear to be. The easiest workaround is just to do a link to the image URL (that's the value of src). So for

ao3 logo

you can add <a href="https://archiveofourown.org/images/ao3_logos/logo_42.png">Ao3 logo</a>. It will look like

There is also the figure element for images, but not all browsers display it correctly.

Miscellaneous

Line Break

<hr/>

Pre-formatted

If you want to leave line breaks, you can use this.

<pre>☻</pre>

Notes:

Feel free to try it out by copying the examples down into a comment. Or any other experimenting with comments like I did.

Series this work belongs to: