Callouts — Info Boxes, Warnings, and Collapsible Blocks

Kiln renders Obsidian-style callouts so you can highlight important information, surface warnings, and organize long-form content with collapsible sections. Callouts carry over from your vault to the published site with matching colors, icons, and fold behavior — no extra configuration needed.

Callouts are part of the [Obsidian Markdown](./Obsidian Markdown.md) syntax that Kiln supports alongside features like Wikilinks & Embeds and Math & LaTeX.

How to Create a Callout

Use the standard blockquote syntax > followed by a callout type in square brackets [!type].

> [!info]
> This is an info callout.
> It can contain **Markdown**, links, and other elements.

Add a Custom Title

By default, the title matches the callout type (e.g., "Info"). Add text after the brackets to set a custom title.

> [!warning] Heads Up!
> This callout has a custom title.

Collapsible Callouts

Make any callout foldable by adding + or - right after the type keyword.

• + — the callout starts expanded.
• - — the callout starts collapsed.

Collapsible callouts are useful for FAQs, spoiler sections, or long reference material that readers can reveal on demand.

> [!faq]- Can I hide this content?
> Yes! This content is hidden until the reader clicks to expand it.

> [!faq]+ Can I leave the content open?
> Yes! Use `+` instead of `-` to default to expanded.

Supported Callout Types

Kiln supports the full set of standard Obsidian callout types and their aliases. Each type renders with a distinct color and icon so readers can quickly identify the purpose of the block.

Callout Examples

Callout Icons

Kiln automatically pairs each callout type with its corresponding icon from the Lucide library, keeping visual consistency with Obsidian.

Styling Callouts with Themes

Callout colors and appearance adapt to the active theme and respect Light & Dark Mode settings, so they look correct in both modes without extra work.