Feature Request

What problem does this solve

I'd like to add multiple ads. The main use case I have right now is to have a separate ad for desktop and mobile; the sidebar on my page gets pushed to the bottom on mobile, which also means the ads gets pushed to the bottom. It would be better to have an ad on the top of the page on mobile.

In the future I'd also might like to display an ad at the top of an article and at the bottom.

Describe the solution you'd like

Add <div class="codefund"> several times and have it work (right now it's an id).

Describe alternatives you've considered

Extensive CSS hackery, which is ugly IMHO.

Additional context

We have multiple ad placements on our roadmap so this should be addressed when that feature is implemented.