Custom newsletter with fields in one row

Hi! I'm trying to fix this problem but I'm having trouble with the coding.

Currently, the form looks like this: (first image)
First name field
Last name field (hide)
Email address
Button

I'm trying to organize items like this: (second image)
First name field        Button
Email address

Or this way (third image) (I think this looks better)
First name field          Email address        Button


I saw a lot of tutorials and they have all the fields in one row, IDK why I don't see mine like that. I hope you can help me, thanks!
 

Can you share your website URL and the page this is on?

Generally if you make the newsletter block wide enough and not set to "stack" then it should look like the third image.

58 minutes ago, Ziggy said:

Can you share your website URL and the page this is on?

Unfortunately, I can't share it because of NDA reasons. I put the item wide enough and it keeps organizing it vertically 😔

1 hour ago, Ziggy said:

not set to "stack"

Sorry, I should have added "set to float" to my previous comment!