Hello, I’m not a Form Assembly employee, however:
This is typically the result of Form Assembly’s CSS styling conflicting with the WordPress theme styling. It’s “complicated” and I’d be lying if I could explain it thoroughly. However, there are two options I’m aware of you could try.
One solution would be to find a solid developer with CSS knowledge and have them tweak your theme by using LESS to wrap your themes Bootstrap CSS. Google can provide more info here.
The alternative is to use a small script and remove the styling that is sent over from Form Assembly, and then use you’re own CSS to style the form as you desire.
To remove the styling FA sends over, try this jquery snippet:
$(function() {
$(‘.wFormContainer style:first’).remove();
});
Then, make sure you have CSS (either through the WordPress template or somewhere else) specified that will make the form appear as desired. Good luck.