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 - [Journal Pages](Journal-Pages.md)
 - [Roll Formulas](Roll-Formulas.md)
 - [Summoning](Summoning.md)
+- [System HTML](System-HTML.md)
 - Tutorials
   - [Custom Classes](Custom-Class-Advancement.md)
   - [Custom Races](Custom-Race-Tutorial.md)
diff --git a/wiki/System-HTML.md b/wiki/System-HTML.md
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+![Up to date as of 3.3.0](https://img.shields.io/static/v1?label=dnd5e&message=3.3.0&color=informational)
+
+The D&D system provides several new CSS classes for formatting text. These styles can be applied to any text field by editing the Source HTML </> and following the examples below.
+
+## Advice and Quest Blocks
+The `fvtt advice` and `fvtt quest` classes share the same format, displaying an image on the left with accompanying text in a boxed layout on the right.  
+Specify the image using the img src attribute within the figure block and the text within the article block.
+
+```html
+<div class="fvtt advice">
+    <figure class="icon">
+        <img src="icons/equipment/chest/robe-layered-red.webp" class="round">
+    </figure>
+    <article>
+        <h4>Casting in Armor</h4>
+        <p>Because of the mental focus and precise gestures required for spellcasting, you must be proficient with the armor you are wearing to cast a spell. You are otherwise too distracted and physically hampered by your armor for spellcasting.</p>
+    </article>
+</div>
+```
+![](https://raw.githubusercontent.com/foundryvtt/dnd5e/publish-wiki/wiki/images/styles/fvttadvice.png)
+
+## Narrative
+The `fvtt narrative` class creates a text box for read-aloud text.
+
+```html
+<div class="fvtt narrative">
+    <p>The horses’ saddlebags have been looted. An empty leather map case lies nearby.</p>
+</div>
+```
+![](https://raw.githubusercontent.com/foundryvtt/dnd5e/publish-wiki/wiki/images/styles/fvttnarrative.png)
+
+## Notable
+The `notable` class is used within an aside tag to create a callout box for additional information.
+
+```html
+<aside class="notable">
+    <h4>Joining a Secret Society</h4>
+    <p>If the party helps Steve, the thief privately approaches certain members of the group and urges them to join the Secret Society of Stealing.</p>
+</aside>
+```
+![](https://raw.githubusercontent.com/foundryvtt/dnd5e/publish-wiki/wiki/images/styles/fvttnotable.png)
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