Rich Content

Several custom shortcodes are included to augment CommonMark. video, image, gif, and audio were created to help you take advantage of modern HTML elements in your writing.

Video

• sources is an array of video file paths. (mandatory)
• class sets a class for the video.
• caption sets the caption text below the video.
• w sets the width of the video.
• h sets the height of the video.
• autoplay when set, autoplays the video on load.
• loop when set, plays the video on a loop.
• muted when set, sets the audio muted initially.
• playsinline when set, plays the video embeded instead of fullscreen on mobile browsers.

sources can be same path, relative path, or root path, like the img shortcode

Optional Classes:

• ci can be used to center the image.
• fr can be used to float the image right.
• fl can be used to float the image left.
• b1 can be used to add a 1px border.

Usage

{{ video(sources=["over9000_av1.mp4", "over9000_vp9.webm"]) }}

Output

<video controls>
  <source src="over9000_av1.mp4" type="video/mp4" />
  <source src="over9000_vp9.webm" type="video/webm" />
  Your browser doesn't support the video tag and/or the video formats in use here – sorry!
</video>

Usage

{{ video(sources=["over9000_av1.mp4", "over9000_vp9.webm"] muted="true" class="ci b1" caption="It's Over 9000!!") }}

Output

<figure class="fi ci b1"><video controls class="ci b1" muted>
  <source src="over9000_av1.mp4" type="video/mp4" />
  <source src="over9000_vp9.webm" type="video/webm" />
  Your browser doesn't support the video tag and/or the video formats in use here – sorry!
</video><figcaption>It&#x27;s Over 9000!!</figcaption></figure>

Image

The image shortcode returns a <picture> tag with multiple sources.

Each string in the sources array should be a path to an image file of a different type (avif, webp, png, jpg, etc). The last image in the sources array is used to create an <img> tag for the browser to fall back on if the other formats are not yet supported.

• sources is an array of image file paths. (mandatory)
• class sets a class for the image.
• caption sets the caption text below the image.
• w sets the width of the image.
• h sets the height of the image.

sources can be same path, relative path, or root path, like the img shortcode

Optional Classes:

• ci can be used to center the image.
• fr can be used to float the image right.
• fl can be used to float the image left.
• b1 can be used to add a 1px border.

Usage

{{ image(sources=["over9000-960.avif", "over9000-640.avif", "over9000-400.avif", "over9000-640.webp"] w=640 h=480 alt="ITS OVER 9000!") }}

Output

<picture>
  <source srcset="over9000-960.avif" type="image/avif" />
  <source srcset="over9000-640.avif" type="image/avif" />
  <source srcset="over9000-400.avif" type="image/avif" />
  <img src="over9000-640.webp" alt="ITS OVER 9000!" width="640" height="480" loading="lazy" />
</picture>

GIF

The gif shortcode is exactly the same as the video shortcode. The only difference is it automatically has the additional properties: autoplay, loop, muted, playsinline.

Using the <video> tag in place of gifs allows for reduced file sizes, which is especially important in regions where internet is slower or less reliable.

Usage

{{ gif(sources=["over9000_av1.mp4", "over9000_vp9.webm"]) }}

Output

<video controls autoplay loop muted playsinline>
  <source src="over9000_av1.mp4" type="video/mp4" />
  <source src="over9000_vp9.webm" type="video/webm" />
  Your browser doesn't support the video tag and/or the video formats in use here – sorry!
</video>

Audio

The audio shortcode takes a sources array of strings and returns an <audio> tag. Each string in the sources array should be a path to an audio file of a different type (ogg, mp3, flac, wav, etc). The browser will play the first type it supports, so placing them in order of size smallest to largest will use the least bandwidth if that is your goal.

• sources is an array of file paths. (mandatory)
• class sets a class for the audio.
• caption sets the caption text below the audio.
• autoplay when set, autoplays the audio on load.
• loop when set, plays the audio on a loop.
• muted when set, sets the audio muted initially.

sources can be same path, relative path, or root path, like the img shortcode

Optional Classes:

• ci can be used to center the image.
• fr can be used to float the image right.
• fl can be used to float the image left.
• b1 can be used to add a 1px border.

Usage

{{ audio(sources=["over9000.ogg", "over9000.mp3", "over9000.flac", "over9000.wav"]) }}

Output

<audio controls>
  <source src="over9000.ogg" type="audio/ogg" />
  <source src="over9000.mp3" type="audio/mp3" />
  <source src="over9000.flac" type="audio/flac" />
  <source src="over9000.wav" type="audio/wav" />
  Your browser doesn't support the audio tag and/or the audio formats in use here – sorry!
</audio>

Usage

{{ audio(sources=["over9000.ogg", "over9000.mp3", "over9000.flac", "over9000.wav"] class="ci b1" caption="It's Over 9000!!") }}

Output

<figure class="fi ci b1"><audio controls class="ci b1">
  <source src="over9000.ogg" type="audio/ogg" />
  <source src="over9000.mp3" type="audio/mp3" />
  <source src="over9000.flac" type="audio/flac" />
  <source src="over9000.wav" type="audio/wav" />
  Your browser doesn't support the audio tag and/or the audio formats in use here – sorry!
</audio><figcaption>It&#x27;s Over 9000!!</figcaption></figure>