Markdown Extended Features
Here are some extended Markdown features supported by Retypeset, including syntax examples and their stylistic effects.
Figure Captions
To create automatic figure captions, use the standard Markdown image syntax . To hide the caption, add an underscore _ before the alt text or leave the alt text empty.
Syntax

Output


Admonition Blocks
To create admonition blocks, use the GitHub syntax > [!TYPE] or the container directive :::type. The following types are supported: note, tip, important, warning, and caution.
Syntax
> [!NOTE]
> Useful information that users should know, even when skimming content.
> [!TIP]
> Helpful advice for doing things better or more easily.
> [!IMPORTANT]
> Key information users need to know to achieve their goal.
:::warning
Urgent info that needs immediate user attention to avoid problems.
:::
:::caution
Advises about risks or negative outcomes of certain actions.
:::
:::note[YOUR CUSTOM TITLE]
This is a note with a custom title.
:::Output
NOTEUseful information that users should know, even when skimming content.
TIPHelpful advice for doing things better or more easily.
IMPORTANTKey information users need to know to achieve their goal.
WARNINGUrgent info that needs immediate user attention to avoid problems.
CAUTIONAdvises about risks or negative outcomes of certain actions.
YOUR CUSTOM TITLEThis is a note with a custom title.
Collapsible Sections
To create collapsible sections, use the container directive syntax :::fold[title]. Click the title to expand or collapse.
Syntax
:::fold[Usage Tips]
Content that may not interest all readers can be placed in a collapsible section.
:::Output
Usage Tips
Content that may not interest all readers can be placed in a collapsible section.
Mermaid Diagrams
To create Mermaid diagrams, wrap Mermaid syntax in code blocks and specify the language type as mermaid.
Syntax
```mermaid
graph TD;
A-->B;
A-->C;
B-->D;
C-->D;
```Output
graph TD;
A-->B;
A-->C;
B-->D;
C-->D;
Galleries
To create image galleries, use the container directive :::gallery. Scroll horizontally to view more images.
Syntax
:::gallery





:::Output





GitHub Repositories
To embed GitHub repositories, use the leaf directive ::github{repo="owner/repo"}.
Syntax
::github{repo="radishzzz/astro-theme-retypeset"}Output
Loading repository data...
Videos
To embed videos, use the leaf directive ::youtube{id="video-id"}.
Syntax
::youtube{id="9pP0pIgP2kE"}
::bilibili{id="BV1sK4y1Z7KG"}Output
Spotify
To embed Spotify content, use the leaf directive ::spotify{url="spotify-url"}.
Syntax
::spotify{url="https://open.spotify.com/track/0HYAsQwJIO6FLqpyTeD3l6"}
::spotify{url="https://open.spotify.com/album/03QiFOKDh6xMiSTkOnsmMG"}Output
Tweets
To embed tweets, use the leaf directive ::tweet{url="tweet-url"}.
Syntax
::tweet{url="https://x.com/hachi_08/status/1906456524337123549"}Output
CodePen
To embed CodePen demos, use the leaf directive ::codepen{url="codepen-url"}.
Syntax
::codepen{url="https://codepen.io/jh3y/pen/NWdNMBJ"}