17.1 – Frontmatter

A frontmatter adds both a title section and metadata like authors and doi to your page.

The data is structured as YAML. Be careful to follow the rules for YAML formatting:

• keep the items properly intended
• strings containing colons must be surrounded by quotation marks

17.2 – Resizing Images

Images work best with this syntax:

```{image} examples/yoda.png
:alt: Yoda
:width: 200px
:align: center
```

17.3 – Embedding Videos

Videos from the local filesystem currently do not work. Embeding videos from external sources like YouTube do work.