First and Last Name Field on Same Line Horizontally

I’m trying to shorten the “look” of the form so it appears easier to fill out.  I would like to have the first and last name field displayed on one line horizontally instead of on top of one another.  The other fields, email and phone would sit below that vertically: it would look like this below.

[First Name] [Last Name]
[Email]
[Phone]

I saw a script to split the whole form in two, but that’s not exactly what I’m trying to achieve.

Any scripts out there that would do this?

Thanks!