Card Thumbnails

Card thumbnails can be added a couple of different ways, depending on if you want them to appear only in the card or both card and topic.

For example:

Markdown card metadata

The thumbnails resize in accordance with the browser width.

To add a thumbnail that does not appear in the topic

Specify the metadata directly in the topic's yaml header.

meta:
  - name: card-thumbnail
    content: ../../images/add-card-thumbnails-md.png

To add a thumbnail that also appears in the topic

Add the thumbnail image to the topic and wrap the image in a style construct labeled card-thumbnail. 

{{#style "card-thumbnail"}} 
![Markdown card metadata](../../images/add-card-thumbnail-md.png)
{{/style}}