[Plugin: Wysija Newsletters] Input-field, submit button next to each other

Hi there,

I use the newsletter on a WP Page. I’ve used the “add Wysija newsletter subscription form” button in the editor and this gave me the form on my page. But I can’t read the code, so I can’t adjust the design.

I would like to use description (text), input-field and the submit button next to each other instead of under each other (vertically). How can I do that?

Thanks,
Daan

https://www.ads-software.com/extend/plugins/wysija-newsletters/