```
% pandoc -t native
::: {.foo}
:::
^D
[Div ("",["foo"],[])
[RawBlock (Format "html") ""
,RawBlock (Format "html") ""
,RawBlock (Format "html") ""
,Plain [Str "hi"]
,RawBlock (Format "html") " | "
,RawBlock (Format "html") "
"
,RawBlock (Format "html") "
"]]
```