Compatibility: fenced div syntax (::: classname ... :::) for block wrapping

[Dev-Ray-Hunt]

Goal

Support Pandoc-style fenced div syntax for wrapping arbitrary block content in a classed <div>.

Syntax

::: stat-block
## Goblin
| STR | DEX | CON |
|---|---|---|
| 8 | 14 | 10 |
:::

Expected Output

<div class="stat-block">
  <h2>Goblin</h2>
  <table>...</table>
</div>

Notes

• Plugin: https://github.com/kotaindah55/extended-markdown-syntax
• Most powerful method — wraps multiple blocks in a single classed container
• Ideal for D&D stat blocks that combine headings, tables, and paragraphs
• Closest to Pandoc fenced_divs extension
• Would require detecting ::: delimiters and wrapping content between them