System HTML - foundryvtt/dnd5e GitHub Wiki
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.
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.
<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>
The fvtt narrative class creates a text box for read-aloud text.
<div class="fvtt narrative">
<p>The horses’ saddlebags have been looted. An empty leather map case lies nearby.</p>
</div>
The notable class is used within an aside tag to create a callout box for additional information.
<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>