Alan McLachlan <alan.mcl-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> pandoc today generates the paragraph text set to "Normal"
> style, I want it to use "My Style 1" instead of Normal.

This is a job for custom-styles:
https://pandoc.org/MANUAL.html#custom-styles

So, one (not particularly user-friendly) way to do it would be to wrap
ever paragaph in a div, to give it a custom style

~~~
::: {custom-style="My Style 1"}
Here is a paragraph.
:::

::: {custom-style="My Style 1"}
Here is another.
:::
~~~

But you probably don't want to do that -- instead, it would be nice to
just write as normal:

~~~
Here is a paragraph.

Here is another.
~~~

and then have paragraphs converted on the fly. To do that, you'd use a
pandoc filter (https://pandoc.org/lua-filters.html):

~~~
function Para(blk)
   local attr = pandoc.Attr()
   attr.attributes["custom-style"] = "My Style 1"
   return pandoc.Div({blk}, attr)
end
~~~

That will convert all plain paras into a styled div. Save that in a file
(`style.lua`), and then run it on the simple markdown file:

`pandoc input.md --lua-filter=styler.lua -o output.docx`