Raw inline content:
```
``{=html}
.
```
Raw block-level content:
````
``` =html
```
.
````
You can't mix regular attributes and raw syntax:
````
`foo`{=html #id}
```
.
<b>foo</b>
{=html #id}
````
Attributes attached to raw content will just be ignored:
````
{.foo}
``` =html